Vulnerability-Lookup

GHSA-3QPQ-R242-JQJ7

Vulnerability from github – Published: 2026-05-05 21:17 – Updated: 2026-05-13 16:27

Summary

phpseclib has a CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Details

Impact

Anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc)

Patches

https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc

Workarounds

No.

References

https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc

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": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 1.0.28"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpseclib/phpseclib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.1.1"
            },
            {
              "fixed": "1.0.29"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.0.53"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpseclib/phpseclib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "2.0.0"
            },
            {
              "fixed": "2.0.54"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 3.0.51"
      },
      "package": {
        "ecosystem": "Packagist",
        "name": "phpseclib/phpseclib"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.0.0"
            },
            {
              "fixed": "3.0.52"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44167"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-05-05T21:17:57Z",
    "nvd_published_at": "2026-05-12T18:17:29Z",
    "severity": "HIGH"
  },
  "details": "### Impact\nAnyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc)\n\n### Patches\nhttps://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc\n\n### Workarounds\nNo.\n\n### References\nhttps://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc",
  "id": "GHSA-3qpq-r242-jqj7",
  "modified": "2026-05-13T16:27:00Z",
  "published": "2026-05-05T21:17:57Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-44167"
    },
    {
      "type": "WEB",
      "url": "https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/phpseclib/phpseclib"
    }
  ],
  "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": "phpseclib has a CVE-2024-27355 mitigation bypass \u2014 OID amplification DoS in ASN1::decodeOID()"
}

CVE-2026-44167 (GCVE-0-2026-44167)

Vulnerability from cvelistv5 – Published: 2026-05-12 17:22 – Updated: 2026-05-14 19:24

Title

phpseclib: CVE-2024-27355 mitigation bypass — OID amplification DoS in ASN1::decodeOID()

Summary

phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-14 19:23 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption

Assigner

GitHub_M CNA under the mitre root

CNA scorecard C 72/100 over 7674 records in the last 180 days details

References

2 references

URL	Tags
https://github.com/phpseclib/phpseclib/security/a…	x_refsource_CONFIRM
https://github.com/phpseclib/phpseclib/commit/d53…	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
phpseclib	phpseclib	Affected: >= 3.0.0, < 3.0.52 Affected: >= 2.0.0, < 2.0.54 Affected: >= 0.1.1, < 1.0.29

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JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-44167",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-14T19:23:26.054244Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-05-14T19:24:44.689Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "phpseclib",
          "vendor": "phpseclib",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 3.0.0, \u003c 3.0.52"
            },
            {
              "status": "affected",
              "version": "\u003e= 2.0.0, \u003c 2.0.54"
            },
            {
              "status": "affected",
              "version": "\u003e= 0.1.1, \u003c 1.0.29"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "phpseclib is a PHP secure communications library. Prior to 1.0.29, 2.0.54, and 3.0.52, anyone loading untrusted ASN1 files (eg. X509 certificates, RSA PKCS8 private or public keys, etc). This is a bypass of CVE-2024-27355. This vulnerability is fixed in 1.0.29, 2.0.54, and 3.0.52."
        }
      ],
      "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"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "CWE-400: Uncontrolled Resource Consumption",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-12T17:22:14.764Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/phpseclib/phpseclib/security/advisories/GHSA-3qpq-r242-jqj7"
        },
        {
          "name": "https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/phpseclib/phpseclib/commit/d53d2021bcb9f6a04d5d44ec99e6bbef219a71bc"
        }
      ],
      "source": {
        "advisory": "GHSA-3qpq-r242-jqj7",
        "discovery": "UNKNOWN"
      },
      "title": "phpseclib: CVE-2024-27355 mitigation bypass \u2014 OID amplification DoS in ASN1::decodeOID()"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-44167",
    "datePublished": "2026-05-12T17:22:14.764Z",
    "dateReserved": "2026-05-05T14:39:34.923Z",
    "dateUpdated": "2026-05-14T19:24:44.689Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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Action not permitted

GHSA-3QPQ-R242-JQJ7

Impact

Patches

Workarounds

References

CVE-2026-44167 (GCVE-0-2026-44167)

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