Vulnerability-Lookup

GHSA-65XW-VW82-R86X

Vulnerability from github – Published: 2026-03-29 15:19 – Updated: 2026-03-30 21:19

Summary

XPath: Boolean expression infinite loop leads to denial of service via CPU exhaustion

Details

Boolean expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as "1=1" or "true()".

Severity ?

7.5 (High)


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

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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/antchfx/xpath"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.3.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-32287"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-03-29T15:19:45Z",
    "nvd_published_at": "2026-03-26T20:16:12Z",
    "severity": "HIGH"
  },
  "details": "Boolean expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as \"1=1\" or \"true()\".",
  "id": "GHSA-65xw-vw82-r86x",
  "modified": "2026-03-30T21:19:36Z",
  "published": "2026-03-29T15:19:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32287"
    },
    {
      "type": "WEB",
      "url": "https://github.com/antchfx/xpath/issues/121"
    },
    {
      "type": "WEB",
      "url": "https://github.com/golang/vulndb/issues/4526"
    },
    {
      "type": "WEB",
      "url": "https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/antchfx/xpath"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4526"
    },
    {
      "type": "WEB",
      "url": "https://securityinfinity.com/research/infinite-loop-dos-in-antchfx-xpath-logicalquery-select"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "XPath: Boolean expression infinite loop leads to denial of service via CPU exhaustion"
}

CVE-2026-32287 (GCVE-0-2026-32287)

Vulnerability from cvelistv5 – Published: 2026-03-26 19:40 – Updated: 2026-03-30 14:55

Title

Infinite loop in github.com/antchfx/xpath

Summary

Boolean XPath expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as "1=1" or "true()".

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-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

References

URL

Tags

	https://github.com/antchfx/xpath/issues/121
	https://github.com/antchfx/xpath/commit/afd4762cc…
	https://github.com/golang/vulndb/issues/4526
	https://pkg.go.dev/vuln/GO-2026-4526

Impacted products

	Vendor	Product	Version
	github.com/antchfx/xpath	github.com/antchfx/xpath	Affected: 0 , < 1.3.6 (semver)

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JSON

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{
  "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-2026-32287",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-03-30T14:12:30.141178Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-03-30T14:55:05.920Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://securityinfinity.com/research/infinite-loop-dos-in-antchfx-xpath-logicalquery-select"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "collectionURL": "https://pkg.go.dev",
          "defaultStatus": "unaffected",
          "packageName": "github.com/antchfx/xpath",
          "product": "github.com/antchfx/xpath",
          "programRoutines": [
            {
              "name": "logicalQuery.Select"
            },
            {
              "name": "Expr.Evaluate"
            },
            {
              "name": "NodeIterator.MoveNext"
            },
            {
              "name": "ancestorQuery.Evaluate"
            },
            {
              "name": "ancestorQuery.Select"
            },
            {
              "name": "attributeQuery.Evaluate"
            },
            {
              "name": "attributeQuery.Select"
            },
            {
              "name": "booleanQuery.Evaluate"
            },
            {
              "name": "booleanQuery.Select"
            },
            {
              "name": "cachedChildQuery.Evaluate"
            },
            {
              "name": "cachedChildQuery.Select"
            },
            {
              "name": "childQuery.Evaluate"
            },
            {
              "name": "childQuery.Select"
            },
            {
              "name": "descendantOverDescendantQuery.Evaluate"
            },
            {
              "name": "descendantOverDescendantQuery.Select"
            },
            {
              "name": "descendantQuery.Evaluate"
            },
            {
              "name": "descendantQuery.Select"
            },
            {
              "name": "filterQuery.Evaluate"
            },
            {
              "name": "filterQuery.Select"
            },
            {
              "name": "followingQuery.Evaluate"
            },
            {
              "name": "followingQuery.Select"
            },
            {
              "name": "functionQuery.Evaluate"
            },
            {
              "name": "groupQuery.Evaluate"
            },
            {
              "name": "groupQuery.Select"
            },
            {
              "name": "lastFuncQuery.Evaluate"
            },
            {
              "name": "logicalQuery.Evaluate"
            },
            {
              "name": "mergeQuery.Evaluate"
            },
            {
              "name": "mergeQuery.Select"
            },
            {
              "name": "numericQuery.Evaluate"
            },
            {
              "name": "parentQuery.Evaluate"
            },
            {
              "name": "parentQuery.Select"
            },
            {
              "name": "precedingQuery.Evaluate"
            },
            {
              "name": "precedingQuery.Select"
            },
            {
              "name": "selfQuery.Evaluate"
            },
            {
              "name": "selfQuery.Select"
            },
            {
              "name": "transformFunctionQuery.Evaluate"
            },
            {
              "name": "transformFunctionQuery.Select"
            },
            {
              "name": "unionQuery.Evaluate"
            },
            {
              "name": "unionQuery.Select"
            }
          ],
          "vendor": "github.com/antchfx/xpath",
          "versions": [
            {
              "lessThan": "1.3.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Boolean XPath expressions that evaluate to true can cause an infinite loop in logicalQuery.Select, leading to 100% CPU usage. This can be triggered by top-level selectors such as \"1=1\" or \"true()\"."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-03-26T19:40:52.142Z",
        "orgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
        "shortName": "Go"
      },
      "references": [
        {
          "url": "https://github.com/antchfx/xpath/issues/121"
        },
        {
          "url": "https://github.com/antchfx/xpath/commit/afd4762cc342af56345a3fb4002a59281fcab494"
        },
        {
          "url": "https://github.com/golang/vulndb/issues/4526"
        },
        {
          "url": "https://pkg.go.dev/vuln/GO-2026-4526"
        }
      ],
      "title": "Infinite loop in github.com/antchfx/xpath"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1bb62c36-49e3-4200-9d77-64a1400537cc",
    "assignerShortName": "Go",
    "cveId": "CVE-2026-32287",
    "datePublished": "2026-03-26T19:40:52.142Z",
    "dateReserved": "2026-03-11T16:38:46.556Z",
    "dateUpdated": "2026-03-30T14:55:05.920Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date

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

GHSA-65XW-VW82-R86X

CVE-2026-32287 (GCVE-0-2026-32287)

Tags

Sightings

Nomenclature