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1 vulnerability by universal-ctags

CVE-2026-2641 (GCVE-0-2026-2641)

Vulnerability from cvelistv5 – Published: 2026-02-18 05:32 – Updated: 2026-02-18 05:32
VLAI?
Title
universal-ctags V Language v.c parseExprList recursion
Summary
A weakness has been identified in universal-ctags ctags up to 6.2.1. The affected element is the function parseExpression/parseExprList of the file parsers/v.c of the component V Language Parser. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.
CWE
Assigner
Impacted products
Vendor Product Version
universal-ctags ctags Affected: 6.2.0
Affected: 6.2.1
Create a notification for this product.
Credits
Oneafter (VulDB User)
Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "modules": [
            "V Language Parser"
          ],
          "product": "ctags",
          "vendor": "universal-ctags",
          "versions": [
            {
              "status": "affected",
              "version": "6.2.0"
            },
            {
              "status": "affected",
              "version": "6.2.1"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Oneafter (VulDB User)"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A weakness has been identified in universal-ctags ctags up to 6.2.1. The affected element is the function parseExpression/parseExprList of the file parsers/v.c of the component V Language Parser. Executing a manipulation can lead to uncontrolled recursion. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 4.8,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 3.3,
            "baseSeverity": "LOW",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 1.7,
            "vectorString": "AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-674",
              "description": "Uncontrolled Recursion",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-404",
              "description": "Denial of Service",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-02-18T05:32:07.920Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-346397 | universal-ctags V Language v.c parseExprList recursion",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/?id.346397"
        },
        {
          "name": "VDB-346397 | CTI Indicators (IOB, IOC, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/?ctiid.346397"
        },
        {
          "name": "Submit #752768 | universal-ctags ctags master-branch Uncontrolled Recursion",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/?submit.752768"
        },
        {
          "tags": [
            "issue-tracking"
          ],
          "url": "https://github.com/universal-ctags/ctags/issues/4369"
        },
        {
          "tags": [
            "exploit"
          ],
          "url": "https://github.com/oneafter/0116/blob/main/poc.v"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/universal-ctags/ctags/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-02-17T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-02-17T01:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-02-17T21:28:28.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "universal-ctags V Language v.c parseExprList recursion"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-2641",
    "datePublished": "2026-02-18T05:32:07.920Z",
    "dateReserved": "2026-02-17T20:23:22.618Z",
    "dateUpdated": "2026-02-18T05:32:07.920Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}