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Vulnerability · Published Feb 18, 2026 · Assigned by VulDB

CVE-2026-2641universal-ctags V Language v.c parseExprList recursion

Low 3.3

In plain English

A low-severity security flaw in ctags from universal-ctags. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities).

Severity (CVSS 3.1)3.3Low
Exploit odds (30 days)0.2%top 93.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12universal-ctagsno fix listedDEBIAN-CVE-2026-2641
Debian:13universal-ctagsno fix listedDEBIAN-CVE-2026-2641
Debian:14universal-ctagsno fix listedDEBIAN-CVE-2026-2641
Ubuntu:22.04:LTSuniversal-ctagsno fix listedUBUNTU-CVE-2026-2641
Ubuntu:24.04:LTSuniversal-ctagsno fix listedUBUNTU-CVE-2026-2641
Ubuntu:25.10universal-ctagsno fix listedUBUNTU-CVE-2026-2641
Ubuntu:26.04:LTSuniversal-ctagsno fix listedUBUNTU-CVE-2026-2641
Ubuntu:26.10universal-ctagsno fix listedUBUNTU-CVE-2026-2641

Affected products (as reported)

VendorProductVersions
universal-ctags ctags 6.2.06.2.1

Weakness: CWE-674, CWE-404 · Vector: 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

References