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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.

PUBLISHED Reserved 2026-02-17 | Published 2026-02-18 | Updated 2026-02-23 | Assigner VulDB




MEDIUM: 4.8CVSS: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
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Uncontrolled Recursion

Denial of Service

Product status

6.2.0
affected

6.2.1
affected

Timeline

2026-02-17:Advisory disclosed
2026-02-17:VulDB entry created
2026-02-18:VulDB entry last update

Credits

Oneafter (VulDB User) reporter

References

vuldb.com/?id.346397 (VDB-346397 | universal-ctags V Language v.c parseExprList recursion) vdb-entry technical-description

vuldb.com/?ctiid.346397 (VDB-346397 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/?submit.752768 (Submit #752768 | universal-ctags ctags master-branch Uncontrolled Recursion) third-party-advisory

github.com/universal-ctags/ctags/issues/4369 issue-tracking

github.com/oneafter/0116/blob/main/poc.v exploit

github.com/universal-ctags/ctags/ product

cve.org (CVE-2026-2641)

nvd.nist.gov (CVE-2026-2641)

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