Vulnerability-Lookup

Vulnerability from cleanstart

Published

2026-05-18 13:28

Modified

2026-05-11 13:48

Summary

Security fixes for CVE-2025-61726, CVE-2025-61727, CVE-2025-61728, CVE-2025-61729, CVE-2025-61730, CVE-2025-61732, CVE-2025-67721, CVE-2025-68119, CVE-2025-68121, CVE-2026-1225, CVE-2026-1605, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, ghsa-72hv-8253-57qq applied in versions: 479-r0, 480-r1

Details

Multiple security vulnerabilities affect the trino package. These issues are resolved in later releases. See references for individual vulnerability details.

References

URL

Type

	https://github.com/cleanstart-dev/cleanstart-secu…	ADVISORY
	https://osv.dev/vulnerability/CVE-2025-61726	WEB
	https://osv.dev/vulnerability/CVE-2025-61727	WEB
	https://osv.dev/vulnerability/CVE-2025-61728	WEB
	https://osv.dev/vulnerability/CVE-2025-61729	WEB
	https://osv.dev/vulnerability/CVE-2025-61730	WEB
	https://osv.dev/vulnerability/CVE-2025-61732	WEB
	https://osv.dev/vulnerability/CVE-2025-67721	WEB
	https://osv.dev/vulnerability/CVE-2025-68119	WEB
	https://osv.dev/vulnerability/CVE-2025-68121	WEB
	https://osv.dev/vulnerability/CVE-2026-1225	WEB
	https://osv.dev/vulnerability/CVE-2026-1605	WEB
	https://osv.dev/vulnerability/CVE-2026-25679	WEB
	https://osv.dev/vulnerability/CVE-2026-27139	WEB
	https://osv.dev/vulnerability/CVE-2026-27142	WEB
	https://osv.dev/vulnerability/CVE-2026-39826	WEB
	https://osv.dev/vulnerability/CVE-2026-39836	WEB
	https://osv.dev/vulnerability/CVE-2026-42499	WEB
	https://osv.dev/vulnerability/ghsa-72hv-8253-57qq	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61726	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61727	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61728	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61729	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61730	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-61732	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-67721	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-68119	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2025-68121	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-1225	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-1605	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-25679	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-27139	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-27142	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-39826	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-39836	WEB
	https://nvd.nist.gov/vuln/detail/CVE-2026-42499	WEB

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "CleanStart",
        "name": "trino"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "480-r1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "credits": [],
  "database_specific": {},
  "details": "Multiple security vulnerabilities affect the trino package. These issues are resolved in later releases. See references for individual vulnerability details.",
  "id": "CLEANSTART-2026-RM01950",
  "modified": "2026-05-11T13:48:59Z",
  "published": "2026-05-18T13:28:50.948074Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/cleanstart-dev/cleanstart-security-advisories/tree/main/advisories/2026/CLEANSTART-2026-RM01950.json"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61726"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61727"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61728"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61729"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61730"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-61732"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-67721"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-68119"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2025-68121"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-1225"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-1605"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-25679"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-27139"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-27142"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-39826"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-39836"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/CVE-2026-42499"
    },
    {
      "type": "WEB",
      "url": "https://osv.dev/vulnerability/ghsa-72hv-8253-57qq"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61726"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61727"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61728"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61729"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61730"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-61732"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-67721"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68119"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68121"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1225"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1605"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-25679"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27139"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27142"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39826"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-39836"
    },
    {
      "type": "WEB",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-42499"
    }
  ],
  "related": [],
  "schema_version": "1.7.3",
  "summary": "Security fixes for CVE-2025-61726, CVE-2025-61727, CVE-2025-61728, CVE-2025-61729, CVE-2025-61730, CVE-2025-61732, CVE-2025-67721, CVE-2025-68119, CVE-2025-68121, CVE-2026-1225, CVE-2026-1605, CVE-2026-25679, CVE-2026-27139, CVE-2026-27142, CVE-2026-39826, CVE-2026-39836, CVE-2026-42499, ghsa-72hv-8253-57qq applied in versions: 479-r0, 480-r1",
  "upstream": [
    "CVE-2025-61726",
    "CVE-2025-61727",
    "CVE-2025-61728",
    "CVE-2025-61729",
    "CVE-2025-61730",
    "CVE-2025-61732",
    "CVE-2025-67721",
    "CVE-2025-68119",
    "CVE-2025-68121",
    "CVE-2026-1225",
    "CVE-2026-1605",
    "CVE-2026-25679",
    "CVE-2026-27139",
    "CVE-2026-27142",
    "CVE-2026-39826",
    "CVE-2026-39836",
    "CVE-2026-42499",
    "ghsa-72hv-8253-57qq"
  ]
}

CVE-2026-1605 (GCVE-0-2026-1605)

Vulnerability from cvelistv5 – Published: 2026-03-05 09:39 – Updated: 2026-03-05 14:46

Summary

In Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with Content-Encoding: gzip, is processed and the corresponding response is not compressed. This happens because the JDK Inflater is allocated for decompressing the request, but it is not released because the release mechanism is tied to the compressed response. In this case, since the response is not compressed, the release mechanism does not trigger, causing the leak.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-401 - Missing Release of Memory after Effective Lifetime

Assigner

eclipse

References

1 reference

URL	Tags
https://github.com/jetty/jetty.project/security/a…

Impacted products

1 product

Vendor	Product	Version
Eclipse Foundation	Eclipse Jetty	Affected: 12.0.0 , ≤ 12.0.31 (semver) Affected: 12.1.0. , ≤ 12.1.5 (semver)

Credits

Gleb Sizov (@glebashnik) Bjørn Christian Seime (@bjorncs)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-1605",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-05T14:46:07.126962Z",
                "version": "2.0.3"
              },
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          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-05T14:46:16.289Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Eclipse Jetty",
          "repo": "https://github.com/jetty/jetty.project",
          "vendor": "Eclipse Foundation",
          "versions": [
            {
              "lessThanOrEqual": "12.0.31",
              "status": "affected",
              "version": "12.0.0",
              "versionType": "semver"
            },
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              "lessThanOrEqual": "12.1.5",
              "status": "affected",
              "version": "12.1.0.",
              "versionType": "semver"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "Gleb Sizov (@glebashnik)"
        },
        {
          "lang": "en",
          "type": "finder",
          "value": "Bj\u00f8rn Christian Seime (@bjorncs)"
        }
      ],
      "descriptions": [
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          "lang": "en",
          "supportingMedia": [
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            }
          ],
          "value": "In Eclipse Jetty, versions 12.0.0-12.0.31 and 12.1.0-12.0.5, class GzipHandler exposes a vulnerability when a compressed HTTP request, with Content-Encoding: gzip, is processed and the corresponding response is not compressed.\n\n\nThis happens because the JDK Inflater is allocated for decompressing the request, but it is not released because the release mechanism is tied to the compressed response.\nIn this case, since the response is not compressed, the release mechanism does not trigger, causing the leak."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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          "scenarios": [
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              "lang": "en",
              "value": "GENERAL"
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      "problemTypes": [
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          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400 Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-401",
              "description": "CWE-401 Missing Release of Memory after Effective Lifetime",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-05T09:39:01.315Z",
        "orgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
        "shortName": "eclipse"
      },
      "references": [
        {
          "url": "https://github.com/jetty/jetty.project/security/advisories/GHSA-xxh7-fcf3-rj7f"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "x_generator": {
        "engine": "Vulnogram 0.5.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "e51fbebd-6053-4e49-959f-1b94eeb69a2c",
    "assignerShortName": "eclipse",
    "cveId": "CVE-2026-1605",
    "datePublished": "2026-03-05T09:39:01.315Z",
    "dateReserved": "2026-01-29T10:58:31.963Z",
    "dateUpdated": "2026-03-05T14:46:16.289Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-25679 (GCVE-0-2026-25679)

Vulnerability from cvelistv5 – Published: 2026-03-06 21:28 – Updated: 2026-03-10 13:37

Title

Incorrect parsing of IPv6 host literals in net/url

Summary

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-1286 - Improper Validation of Syntactic Correctness of Input

Assigner

References

4 references

URL	Tags
https://go.dev/cl/752180
https://go.dev/issue/77578
https://groups.google.com/g/golang-announce/c/Edh…
https://pkg.go.dev/vuln/GO-2026-4601

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/url	Affected: 0 , < 1.25.8 (semver) Affected: 1.26.0-0 , < 1.26.1 (semver)

Credits

Masaki Hara (https://github.com/qnighy) of Wantedly

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-25679",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-10T13:36:26.554241Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
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          "dateUpdated": "2026-03-10T13:37:02.459Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/url",
          "product": "net/url",
          "programRoutines": [
            {
              "name": "parseHost"
            },
            {
              "name": "JoinPath"
            },
            {
              "name": "Parse"
            },
            {
              "name": "ParseRequestURI"
            },
            {
              "name": "URL.Parse"
            },
            {
              "name": "URL.UnmarshalBinary"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.26.1",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            }
          ]
        }
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      "credits": [
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          "value": "Masaki Hara (https://github.com/qnighy) of Wantedly"
        }
      ],
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          "lang": "en",
          "value": "url.Parse insufficiently validated the host/authority component and accepted some invalid URLs."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-1286: Improper Validation of Syntactic Correctness of Input",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-06T21:28:14.211Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/cl/752180"
        },
        {
          "url": "https://go.dev/issue/77578"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4601"
        }
      ],
      "title": "Incorrect parsing of IPv6 host literals in net/url"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
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    "datePublished": "2026-03-06T21:28:14.211Z",
    "dateReserved": "2026-02-05T01:33:41.943Z",
    "dateUpdated": "2026-03-10T13:37:02.459Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
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}

CVE-2026-27139 (GCVE-0-2026-27139)

Vulnerability from cvelistv5 – Published: 2026-03-06 21:28 – Updated: 2026-03-09 14:53

Title

FileInfo can escape from a Root in os

Summary

On Unix platforms, when listing the contents of a directory using File.ReadDir or File.Readdir the returned FileInfo could reference a file outside of the Root in which the File was opened. The impact of this escape is limited to reading metadata provided by lstat from arbitrary locations on the filesystem without permitting reading or writing files outside the root.

Severity ?

2.5 (Low)


                        
                          CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE

CWE-363 - Race Condition Enabling Link Following

Assigner

References

4 references

URL	Tags
https://groups.google.com/g/golang-announce/c/Edh…
https://go.dev/issue/77827
https://go.dev/cl/749480
https://pkg.go.dev/vuln/GO-2026-4602

Impacted products

1 product

Vendor	Product	Version
Go standard library	os	Affected: 0 , < 1.25.8 (semver) Affected: 1.26.0-0 , < 1.26.1 (semver)

Credits

Miloslav Trmač of Red Hat

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "HIGH",
              "attackVector": "LOCAL",
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              "privilegesRequired": "LOW",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-27139",
                "options": [
                  {
                    "Exploitation": "none"
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        "providerMetadata": {
          "dateUpdated": "2026-03-09T14:53:58.363Z",
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          "shortName": "CISA-ADP"
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        "title": "CISA ADP Vulnrichment"
      }
    ],
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "os",
          "product": "os",
          "programRoutines": [
            {
              "name": "File.ReadDir"
            },
            {
              "name": "File.Readdir"
            },
            {
              "name": "ReadDir"
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            {
              "name": "dirFS.ReadDir"
            },
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              "name": "rootFS.ReadDir"
            }
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              "status": "affected",
              "version": "0",
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              "version": "1.26.0-0",
              "versionType": "semver"
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          ]
        }
      ],
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          "lang": "en",
          "value": "Miloslav Trma\u010d of Red Hat"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "On Unix platforms, when listing the contents of a directory using File.ReadDir or File.Readdir the returned FileInfo could reference a file outside of the Root in which the File was opened. The impact of this escape is limited to reading metadata provided by lstat from arbitrary locations on the filesystem without permitting reading or writing files outside the root."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-363: Race Condition Enabling Link Following",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-06T21:28:14.451Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
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          "url": "https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk"
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        {
          "url": "https://go.dev/issue/77827"
        },
        {
          "url": "https://go.dev/cl/749480"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4602"
        }
      ],
      "title": "FileInfo can escape from a Root in os"
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    "dateReserved": "2026-02-17T19:57:28.435Z",
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-27142 (GCVE-0-2026-27142)

Vulnerability from cvelistv5 – Published: 2026-03-06 21:28 – Updated: 2026-03-16 15:21

Title

URLs in meta content attribute actions are not escaped in html/template

Summary

Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value "refresh". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow "url=" by setting htmlmetacontenturlescape=0.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

References

4 references

URL	Tags
https://groups.google.com/g/golang-announce/c/Edh…
https://go.dev/issue/77954
https://go.dev/cl/752081
https://pkg.go.dev/vuln/GO-2026-4603

Impacted products

1 product

Vendor	Product	Version
Go standard library	html/template	Affected: 0 , < 1.25.8 (semver) Affected: 1.26.0-0 , < 1.26.1 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
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              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
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              "version": "3.1"
            }
          },
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            "other": {
              "content": {
                "id": "CVE-2026-27142",
                "options": [
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                    "Exploitation": "none"
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                    "Automatable": "no"
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                    "Technical Impact": "partial"
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                "timestamp": "2026-03-16T15:21:11.058826Z",
                "version": "2.0.3"
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "html/template",
          "product": "html/template",
          "programRoutines": [
            {
              "name": "tTag"
            },
            {
              "name": "escaper.escapeAction"
            },
            {
              "name": "Template.Execute"
            },
            {
              "name": "Template.ExecuteTemplate"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.8",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
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            {
              "lessThan": "1.26.1",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Actions which insert URLs into the content attribute of HTML meta tags are not escaped. This can allow XSS if the meta tag also has an http-equiv attribute with the value \"refresh\". A new GODEBUG setting has been added, htmlmetacontenturlescape, which can be used to disable escaping URLs in actions in the meta content attribute which follow \"url=\" by setting htmlmetacontenturlescape=0."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-79: Improper Neutralization of Input During Web Page Generation (\u0027Cross-site Scripting\u0027)",
              "lang": "en"
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        }
      ],
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        "dateUpdated": "2026-03-06T21:28:14.674Z",
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          "url": "https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk"
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          "url": "https://go.dev/issue/77954"
        },
        {
          "url": "https://go.dev/cl/752081"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4603"
        }
      ],
      "title": "URLs in meta content attribute actions are not escaped in html/template"
    }
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  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-39826 (GCVE-0-2026-39826)

Vulnerability from cvelistv5 – Published: 2026-05-07 19:41 – Updated: 2026-05-08 14:05

Title

Escaper bypass leads to XSS in html/template

Summary

If a trusted template author were to write a <script> tag containing an empty 'type' attribute or a 'type' attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the <script> block.

Severity ?

6.1 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CWE

CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

References

4 references

URL	Tags
https://go.dev/issue/78981
https://go.dev/cl/771180
https://groups.google.com/g/golang-announce/c/qcC…
https://pkg.go.dev/vuln/GO-2026-4980

Impacted products

1 product

Vendor	Product	Version
Go standard library	html/template	Affected: 0 , < 1.25.10 (semver) Affected: 1.26.0-0 , < 1.26.3 (semver)

Credits

Mundur (https://github.com/M0nd0R)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "NONE",
              "baseScore": 6.1,
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              "confidentialityImpact": "LOW",
              "integrityImpact": "LOW",
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              "userInteraction": "REQUIRED",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-39826",
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          "shortName": "CISA-ADP"
        },
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      }
    ],
    "cna": {
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        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "html/template",
          "product": "html/template",
          "programRoutines": [
            {
              "name": "isJSType"
            },
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            {
              "name": "Template.ExecuteTemplate"
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          ],
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          "value": "Mundur (https://github.com/M0nd0R)"
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          "value": "If a trusted template author were to write a \u003cscript\u003e tag containing an empty \u0027type\u0027 attribute or a \u0027type\u0027 attribute with an ASCII whitespace, the execution of the template would incorrectly escape any data passed into the \u003cscript\u003e block."
        }
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}

CVE-2026-39836 (GCVE-0-2026-39836)

Vulnerability from cvelistv5 – Published: 2026-05-07 19:41 – Updated: 2026-05-08 21:30

Title

Panic in Dial and LookupPort when handling NUL byte on Windows in net

Summary

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-248 - Uncaught Exception

Assigner

References

4 references

URL	Tags
https://go.dev/issue/79006
https://groups.google.com/g/golang-announce/c/qcC…
https://go.dev/cl/775320
https://pkg.go.dev/vuln/GO-2026-4971

Impacted products

1 product

Vendor	Product	Version
Go standard library	net	Affected: 0 , < 1.25.10 (semver) Affected: 1.26.0-0 , < 1.26.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-39836",
                "options": [
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                    "Exploitation": "none"
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                    "Technical Impact": "partial"
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                "timestamp": "2026-05-08T16:36:25.079035Z",
                "version": "2.0.3"
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        ],
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          "dateUpdated": "2026-05-08T21:30:15.127Z",
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net",
          "product": "net",
          "programRoutines": [
            {
              "name": "Resolver.lookupPort"
            },
            {
              "name": "Resolver.lookupAddr"
            },
            {
              "name": "Resolver.lookupTXT"
            },
            {
              "name": "Resolver.lookupNS"
            },
            {
              "name": "Resolver.lookupMX"
            },
            {
              "name": "Resolver.lookupSRV"
            },
            {
              "name": "Dial"
            },
            {
              "name": "DialTimeout"
            },
            {
              "name": "Dialer.Dial"
            },
            {
              "name": "Dialer.DialContext"
            },
            {
              "name": "Listen"
            },
            {
              "name": "ListenConfig.Listen"
            },
            {
              "name": "ListenConfig.ListenPacket"
            },
            {
              "name": "ListenPacket"
            },
            {
              "name": "LookupAddr"
            },
            {
              "name": "LookupCNAME"
            },
            {
              "name": "LookupHost"
            },
            {
              "name": "LookupIP"
            },
            {
              "name": "LookupMX"
            },
            {
              "name": "LookupNS"
            },
            {
              "name": "LookupPort"
            },
            {
              "name": "LookupSRV"
            },
            {
              "name": "LookupTXT"
            },
            {
              "name": "ResolveIPAddr"
            },
            {
              "name": "ResolveTCPAddr"
            },
            {
              "name": "ResolveUDPAddr"
            },
            {
              "name": "Resolver.LookupAddr"
            },
            {
              "name": "Resolver.LookupCNAME"
            },
            {
              "name": "Resolver.LookupHost"
            },
            {
              "name": "Resolver.LookupIP"
            },
            {
              "name": "Resolver.LookupIPAddr"
            },
            {
              "name": "Resolver.LookupMX"
            },
            {
              "name": "Resolver.LookupNS"
            },
            {
              "name": "Resolver.LookupNetIP"
            },
            {
              "name": "Resolver.LookupPort"
            },
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              "name": "Resolver.LookupSRV"
            },
            {
              "name": "Resolver.LookupTXT"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
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              "status": "affected",
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              "versionType": "semver"
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              "lessThan": "1.26.3",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
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          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0)."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-248: Uncaught Exception",
              "lang": "en"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-07T19:41:18.300Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/79006"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
        },
        {
          "url": "https://go.dev/cl/775320"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4971"
        }
      ],
      "title": "Panic in Dial and LookupPort when handling NUL byte on Windows in net"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-39836",
    "datePublished": "2026-05-07T19:41:18.300Z",
    "dateReserved": "2026-04-07T18:13:03.529Z",
    "dateUpdated": "2026-05-08T21:30:15.127Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-42499 (GCVE-0-2026-42499)

Vulnerability from cvelistv5 – Published: 2026-05-07 19:41 – Updated: 2026-05-08 21:29

Title

Quadratic string concatenation in consumePhrase in net/mail

Summary

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322.

Severity ?

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

References

4 references

URL	Tags
https://go.dev/issue/78987
https://go.dev/cl/771520
https://groups.google.com/g/golang-announce/c/qcC…
https://pkg.go.dev/vuln/GO-2026-4977

Impacted products

1 product

Vendor	Product	Version
Go standard library	net/mail	Affected: 0 , < 1.25.10 (semver) Affected: 1.26.0-0 , < 1.26.3 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "cvssV3_1": {
              "attackComplexity": "LOW",
              "attackVector": "NETWORK",
              "availabilityImpact": "HIGH",
              "baseScore": 7.5,
              "baseSeverity": "HIGH",
              "confidentialityImpact": "NONE",
              "integrityImpact": "NONE",
              "privilegesRequired": "NONE",
              "scope": "UNCHANGED",
              "userInteraction": "NONE",
              "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
              "version": "3.1"
            }
          },
          {
            "other": {
              "content": {
                "id": "CVE-2026-42499",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-08T16:55:28.873015Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-08T21:29:59.662Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "net/mail",
          "product": "net/mail",
          "programRoutines": [
            {
              "name": "addrParser.consumePhrase"
            },
            {
              "name": "AddressParser.Parse"
            },
            {
              "name": "AddressParser.ParseList"
            },
            {
              "name": "Header.AddressList"
            },
            {
              "name": "ParseAddress"
            },
            {
              "name": "ParseAddressList"
            }
          ],
          "vendor": "Go standard library",
          "versions": [
            {
              "lessThan": "1.25.10",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThan": "1.26.3",
              "status": "affected",
              "version": "1.26.0-0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-407: Inefficient Algorithmic Complexity",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-07T19:41:18.615Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://go.dev/issue/78987"
        },
        {
          "url": "https://go.dev/cl/771520"
        },
        {
          "url": "https://groups.google.com/g/golang-announce/c/qcCIEXso47M"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4977"
        }
      ],
      "title": "Quadratic string concatenation in consumePhrase in net/mail"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-42499",
    "datePublished": "2026-05-07T19:41:18.615Z",
    "dateReserved": "2026-04-28T00:21:12.791Z",
    "dateUpdated": "2026-05-08T21:29:59.662Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

GHSA-72HV-8253-57QQ

Vulnerability from github – Published: 2026-02-28 02:01 – Updated: 2026-04-07 16:30

Summary

jackson-core: Number Length Constraint Bypass in Async Parser Leads to Potential DoS Condition

Details

Summary

The non-blocking (async) JSON parser in jackson-core bypasses the maxNumberLength constraint (default: 1000 characters) defined in StreamReadConstraints. This allows an attacker to send JSON with arbitrarily long numbers through the async parser API, leading to excessive memory allocation and potential CPU exhaustion, resulting in a Denial of Service (DoS).

The standard synchronous parser correctly enforces this limit, but the async parser fails to do so, creating an inconsistent enforcement policy.

Details

The root cause is that the async parsing path in NonBlockingUtf8JsonParserBase (and related classes) does not call the methods responsible for number length validation.

The number parsing methods (e.g., _finishNumberIntegralPart) accumulate digits into the TextBuffer without any length checks.
After parsing, they call _valueComplete(), which finalizes the token but does not call resetInt() or resetFloat().
The resetInt()/resetFloat() methods in ParserBase are where the validateIntegerLength() and validateFPLength() checks are performed.
Because this validation step is skipped, the maxNumberLength constraint is never enforced in the async code path.

PoC

The following JUnit 5 test demonstrates the vulnerability. It shows that the async parser accepts a 5,000-digit number, whereas the limit should be 1,000.

package tools.jackson.core.unittest.dos;

import java.nio.charset.StandardCharsets;

import org.junit.jupiter.api.Test;

import tools.jackson.core.*;
import tools.jackson.core.exc.StreamConstraintsException;
import tools.jackson.core.json.JsonFactory;
import tools.jackson.core.json.async.NonBlockingByteArrayJsonParser;

import static org.junit.jupiter.api.Assertions.*;

/**
 * POC: Number Length Constraint Bypass in Non-Blocking (Async) JSON Parsers
 *
 * Authors: sprabhav7, rohan-repos
 * 
 * maxNumberLength default = 1000 characters (digits).
 * A number with more than 1000 digits should be rejected by any parser.
 *
 * BUG: The async parser never calls resetInt()/resetFloat() which is where
 * validateIntegerLength()/validateFPLength() lives. Instead it calls
 * _valueComplete() which skips all number length validation.
 *
 * CWE-770: Allocation of Resources Without Limits or Throttling
 */
class AsyncParserNumberLengthBypassTest {

    private static final int MAX_NUMBER_LENGTH = 1000;
    private static final int TEST_NUMBER_LENGTH = 5000;

    private final JsonFactory factory = new JsonFactory();

    // CONTROL: Sync parser correctly rejects a number exceeding maxNumberLength
    @Test
    void syncParserRejectsLongNumber() throws Exception {
        byte[] payload = buildPayloadWithLongInteger(TEST_NUMBER_LENGTH);

        // Output to console
        System.out.println("[SYNC] Parsing " + TEST_NUMBER_LENGTH + "-digit number (limit: " + MAX_NUMBER_LENGTH + ")");
        try {
            try (JsonParser p = factory.createParser(ObjectReadContext.empty(), payload)) {
                while (p.nextToken() != null) {
                    if (p.currentToken() == JsonToken.VALUE_NUMBER_INT) {
                        System.out.println("[SYNC] Accepted number with " + p.getText().length() + " digits — UNEXPECTED");
                    }
                }
            }
            fail("Sync parser must reject a " + TEST_NUMBER_LENGTH + "-digit number");
        } catch (StreamConstraintsException e) {
            System.out.println("[SYNC] Rejected with StreamConstraintsException: " + e.getMessage());
        }
    }

    // VULNERABILITY: Async parser accepts the SAME number that sync rejects
    @Test
    void asyncParserAcceptsLongNumber() throws Exception {
        byte[] payload = buildPayloadWithLongInteger(TEST_NUMBER_LENGTH);

        NonBlockingByteArrayJsonParser p =
            (NonBlockingByteArrayJsonParser) factory.createNonBlockingByteArrayParser(ObjectReadContext.empty());
        p.feedInput(payload, 0, payload.length);
        p.endOfInput();

        boolean foundNumber = false;
        try {
            while (p.nextToken() != null) {
                if (p.currentToken() == JsonToken.VALUE_NUMBER_INT) {
                    foundNumber = true;
                    String numberText = p.getText();
                    assertEquals(TEST_NUMBER_LENGTH, numberText.length(),
                        "Async parser silently accepted all " + TEST_NUMBER_LENGTH + " digits");
                }
            }
            // Output to console
            System.out.println("[ASYNC INT] Accepted number with " + TEST_NUMBER_LENGTH + " digits — BUG CONFIRMED");
            assertTrue(foundNumber, "Parser should have produced a VALUE_NUMBER_INT token");
        } catch (StreamConstraintsException e) {
            fail("Bug is fixed — async parser now correctly rejects long numbers: " + e.getMessage());
        }
        p.close();
    }

    private byte[] buildPayloadWithLongInteger(int numDigits) {
        StringBuilder sb = new StringBuilder(numDigits + 10);
        sb.append("{\"v\":");
        for (int i = 0; i < numDigits; i++) {
            sb.append((char) ('1' + (i % 9)));
        }
        sb.append('}');
        return sb.toString().getBytes(StandardCharsets.UTF_8);
    }
}

Impact

A malicious actor can send a JSON document with an arbitrarily long number to an application using the async parser (e.g., in a Spring WebFlux or other reactive application). This can cause: 1. Memory Exhaustion: Unbounded allocation of memory in the TextBuffer to store the number's digits, leading to an OutOfMemoryError. 2. CPU Exhaustion: If the application subsequently calls getBigIntegerValue() or getDecimalValue(), the JVM can be tied up in O(n^2) BigInteger parsing operations, leading to a CPU-based DoS.

Suggested Remediation

The async parsing path should be updated to respect the maxNumberLength constraint. The simplest fix appears to ensure that _valueComplete() or a similar method in the async path calls the appropriate validation methods (resetInt() or resetFloat()) already present in ParserBase, mirroring the behavior of the synchronous parsers.

NOTE: This research was performed in collaboration with rohan-repos

Severity ?

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Maven",
        "name": "tools.jackson.core:jackson-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.1.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "com.fasterxml.jackson.core:jackson-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.19.0"
            },
            {
              "fixed": "2.21.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.18.5"
      },
      "package": {
        "ecosystem": "Maven",
        "name": "com.fasterxml.jackson.core:jackson-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.18.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-02-28T02:01:05Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Summary\nThe non-blocking (async) JSON parser in `jackson-core` bypasses the `maxNumberLength` constraint (default: 1000 characters) defined in `StreamReadConstraints`. This allows an attacker to send JSON with arbitrarily long numbers through the async parser API, leading to excessive memory allocation and potential CPU exhaustion, resulting in a Denial of Service (DoS).\n\nThe standard synchronous parser correctly enforces this limit, but the async parser fails to do so, creating an inconsistent enforcement policy.\n\n### Details\nThe root cause is that the async parsing path in `NonBlockingUtf8JsonParserBase` (and related classes) does not call the methods responsible for number length validation.\n\n- The number parsing methods (e.g., `_finishNumberIntegralPart`) accumulate digits into the `TextBuffer` without any length checks.\n- After parsing, they call `_valueComplete()`, which finalizes the token but does **not** call `resetInt()` or `resetFloat()`.\n- The `resetInt()`/`resetFloat()` methods in `ParserBase` are where the `validateIntegerLength()` and `validateFPLength()` checks are performed.\n- Because this validation step is skipped, the `maxNumberLength` constraint is never enforced in the async code path.\n\n### PoC\nThe following JUnit 5 test demonstrates the vulnerability. It shows that the async parser accepts a 5,000-digit number, whereas the limit should be 1,000.\n\n```java\npackage tools.jackson.core.unittest.dos;\n\nimport java.nio.charset.StandardCharsets;\n\nimport org.junit.jupiter.api.Test;\n\nimport tools.jackson.core.*;\nimport tools.jackson.core.exc.StreamConstraintsException;\nimport tools.jackson.core.json.JsonFactory;\nimport tools.jackson.core.json.async.NonBlockingByteArrayJsonParser;\n\nimport static org.junit.jupiter.api.Assertions.*;\n\n/**\n * POC: Number Length Constraint Bypass in Non-Blocking (Async) JSON Parsers\n *\n * Authors: sprabhav7, rohan-repos\n * \n * maxNumberLength default = 1000 characters (digits).\n * A number with more than 1000 digits should be rejected by any parser.\n *\n * BUG: The async parser never calls resetInt()/resetFloat() which is where\n * validateIntegerLength()/validateFPLength() lives. Instead it calls\n * _valueComplete() which skips all number length validation.\n *\n * CWE-770: Allocation of Resources Without Limits or Throttling\n */\nclass AsyncParserNumberLengthBypassTest {\n\n    private static final int MAX_NUMBER_LENGTH = 1000;\n    private static final int TEST_NUMBER_LENGTH = 5000;\n\n    private final JsonFactory factory = new JsonFactory();\n\n    // CONTROL: Sync parser correctly rejects a number exceeding maxNumberLength\n    @Test\n    void syncParserRejectsLongNumber() throws Exception {\n        byte[] payload = buildPayloadWithLongInteger(TEST_NUMBER_LENGTH);\n\t\t\n\t\t// Output to console\n        System.out.println(\"[SYNC] Parsing \" + TEST_NUMBER_LENGTH + \"-digit number (limit: \" + MAX_NUMBER_LENGTH + \")\");\n        try {\n            try (JsonParser p = factory.createParser(ObjectReadContext.empty(), payload)) {\n                while (p.nextToken() != null) {\n                    if (p.currentToken() == JsonToken.VALUE_NUMBER_INT) {\n                        System.out.println(\"[SYNC] Accepted number with \" + p.getText().length() + \" digits \u2014 UNEXPECTED\");\n                    }\n                }\n            }\n            fail(\"Sync parser must reject a \" + TEST_NUMBER_LENGTH + \"-digit number\");\n        } catch (StreamConstraintsException e) {\n            System.out.println(\"[SYNC] Rejected with StreamConstraintsException: \" + e.getMessage());\n        }\n    }\n\n    // VULNERABILITY: Async parser accepts the SAME number that sync rejects\n    @Test\n    void asyncParserAcceptsLongNumber() throws Exception {\n        byte[] payload = buildPayloadWithLongInteger(TEST_NUMBER_LENGTH);\n\n        NonBlockingByteArrayJsonParser p =\n            (NonBlockingByteArrayJsonParser) factory.createNonBlockingByteArrayParser(ObjectReadContext.empty());\n        p.feedInput(payload, 0, payload.length);\n        p.endOfInput();\n\n        boolean foundNumber = false;\n        try {\n            while (p.nextToken() != null) {\n                if (p.currentToken() == JsonToken.VALUE_NUMBER_INT) {\n                    foundNumber = true;\n                    String numberText = p.getText();\n                    assertEquals(TEST_NUMBER_LENGTH, numberText.length(),\n                        \"Async parser silently accepted all \" + TEST_NUMBER_LENGTH + \" digits\");\n                }\n            }\n            // Output to console\n            System.out.println(\"[ASYNC INT] Accepted number with \" + TEST_NUMBER_LENGTH + \" digits \u2014 BUG CONFIRMED\");\n            assertTrue(foundNumber, \"Parser should have produced a VALUE_NUMBER_INT token\");\n        } catch (StreamConstraintsException e) {\n            fail(\"Bug is fixed \u2014 async parser now correctly rejects long numbers: \" + e.getMessage());\n        }\n        p.close();\n    }\n\n    private byte[] buildPayloadWithLongInteger(int numDigits) {\n        StringBuilder sb = new StringBuilder(numDigits + 10);\n        sb.append(\"{\\\"v\\\":\");\n        for (int i = 0; i \u003c numDigits; i++) {\n            sb.append((char) (\u00271\u0027 + (i % 9)));\n        }\n        sb.append(\u0027}\u0027);\n        return sb.toString().getBytes(StandardCharsets.UTF_8);\n    }\n}\n\n```\n\n\n### Impact\nA malicious actor can send a JSON document with an arbitrarily long number to an application using the async parser (e.g., in a Spring WebFlux or other reactive application). This can cause:\n1.  **Memory Exhaustion:** Unbounded allocation of memory in the `TextBuffer` to store the number\u0027s digits, leading to an `OutOfMemoryError`.\n2.  **CPU Exhaustion:** If the application subsequently calls `getBigIntegerValue()` or `getDecimalValue()`, the JVM can be tied up in O(n^2) `BigInteger` parsing operations, leading to a CPU-based DoS.\n\n### Suggested Remediation\n\nThe async parsing path should be updated to respect the `maxNumberLength` constraint. The simplest fix appears to ensure that `_valueComplete()` or a similar method in the async path calls the appropriate validation methods (`resetInt()` or `resetFloat()`) already present in `ParserBase`, mirroring the behavior of the synchronous parsers.\n\n**NOTE:** This research was performed in collaboration with [rohan-repos](https://github.com/rohan-repos)",
  "id": "GHSA-72hv-8253-57qq",
  "modified": "2026-04-07T16:30:17Z",
  "published": "2026-02-28T02:01:05Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-core/security/advisories/GHSA-72hv-8253-57qq"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-core/pull/1555"
    },
    {
      "type": "WEB",
      "url": "https://github.com/FasterXML/jackson-core/commit/b0c428e6f993e1b5ece5c1c3cb2523e887cd52cf"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/FasterXML/jackson-core"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "jackson-core: Number Length Constraint Bypass in Async Parser Leads to Potential DoS Condition"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

Vulnerability from cleanstart

CVE-2026-1605 (GCVE-0-2026-1605)

CVE-2026-25679 (GCVE-0-2026-25679)

CVE-2026-27139 (GCVE-0-2026-27139)

CVE-2026-27142 (GCVE-0-2026-27142)

CVE-2026-39826 (GCVE-0-2026-39826)

CVE-2026-39836 (GCVE-0-2026-39836)

CVE-2026-42499 (GCVE-0-2026-42499)

GHSA-72HV-8253-57QQ

Summary

Details

PoC

Impact

Suggested Remediation

Tags

Sightings

Nomenclature