Vulnerability-Lookup

UBUNTU-CVE-2026-68499 (CVE-2026-68499)

Vulnerability from osv_ubuntu – Published: 2026-07-30 21:18 – Updated: 2026-08-06 00:23 – Source website

Details

re2 provides Node.js bindings for Google's RE2 regular expression engine. Prior to 1.25.2, re2's String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2.

Severity

6.2 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2026-68499	REPORT
	https://www.cve.org/CVERecord?id=CVE-2026-68499	REPORT
	https://github.com/uhop/node-re2/security/advisor…	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-re2",
            "binary_version": "1.10.5-1build1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "node-re2",
        "purl": "pkg:deb/ubuntu/node-re2@1.10.5-1build1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.10.4-1",
        "1.10.5-1",
        "1.10.5-1build1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-re2",
            "binary_version": "1.17.3+~cs2.13.8-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "node-re2",
        "purl": "pkg:deb/ubuntu/node-re2@1.17.3+~cs2.13.8-1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.15.9+~cs1.8.18-1",
        "1.15.9+~cs1.8.18-2",
        "1.16.0+~cs2.12.8-2",
        "1.17.1+~cs2.12.8-1",
        "1.17.2+~cs2.13.8-1",
        "1.17.3+~cs2.13.8-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-re2",
            "binary_version": "1.20.10+~cs2.13.13-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "node-re2",
        "purl": "pkg:deb/ubuntu/node-re2@1.20.10+~cs2.13.13-1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.18.0+~cs2.13.8-1build1",
        "1.19.2+~cs2.13.13-1build1",
        "1.20.10+~cs2.13.13-1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "node-re2",
            "binary_version": "1.23.3+~cs1.3.5-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "node-re2",
        "purl": "pkg:deb/ubuntu/node-re2@1.23.3+~cs1.3.5-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.22.1+~cs1.3.5-1",
        "1.22.1+~cs1.3.5-1build2",
        "1.22.1+~cs1.3.5-1build3",
        "1.23.3+~cs1.3.5-1"
      ]
    }
  ],
  "aliases": [],
  "details": "re2 provides Node.js bindings for Google\u0027s RE2 regular expression engine. Prior to 1.25.2, re2\u0027s String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2.",
  "id": "UBUNTU-CVE-2026-68499",
  "modified": "2026-08-06T00:23:23Z",
  "published": "2026-07-30T21:18:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-68499"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-68499"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-6hxr-mr5r-9836"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-68499"
  ]
}

CVE-2026-68499 (GCVE-0-2026-68499)

Vulnerability from cvelistv5 – Published: 2026-07-30 20:07 – Updated: 2026-07-31 19:19

Title

re2: Global `String.prototype.match` with an empty-matchable pattern never advances → infinite loop with unbounded native memory growth (DoS)

Summary

Severity

6.2 (Medium)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-31 19:18 UTC

CWE

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

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/uhop/node-re2/security/advisor…	x_refsource_CONFIRM
https://github.com/uhop/node-re2/commit/56293de4f…	x_refsource_MISC
https://github.com/uhop/node-re2/releases/tag/1.25.2	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
uhop	node-re2	Affected: < 1.25.2

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-68499",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-31T19:18:39.668208Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-07-31T19:19:08.646Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-6hxr-mr5r-9836"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "node-re2",
          "vendor": "uhop",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 1.25.2"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "re2 provides Node.js bindings for Google\u0027s RE2 regular expression engine. Prior to 1.25.2, re2\u0027s String.prototype.match implementation with a global RE2 pattern that can match the empty string fails to advance its native matching cursor in lib/match.cc, causing an infinite loop and unbounded native memory growth that blocks the event loop and can exhaust host memory. This issue is fixed in 1.25.2."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "HIGH",
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-835",
              "description": "CWE-835: Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-07-30T20:07:01.147Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/uhop/node-re2/security/advisories/GHSA-6hxr-mr5r-9836",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/uhop/node-re2/security/advisories/GHSA-6hxr-mr5r-9836"
        },
        {
          "name": "https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d",
          "tags": [
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          ],
          "url": "https://github.com/uhop/node-re2/commit/56293de4fc0914d7bc35f92e98de25b0d9bb417d"
        },
        {
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          "tags": [
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          ],
          "url": "https://github.com/uhop/node-re2/releases/tag/1.25.2"
        }
      ],
      "source": {
        "advisory": "GHSA-6hxr-mr5r-9836",
        "discovery": "UNKNOWN"
      },
      "title": "re2: Global `String.prototype.match` with an empty-matchable pattern never advances \u2192 infinite loop with unbounded native memory growth (DoS)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-68499",
    "datePublished": "2026-07-30T20:07:01.147Z",
    "dateReserved": "2026-07-30T16:19:08.081Z",
    "dateUpdated": "2026-07-31T19:19:08.646Z",
    "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.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.