CVE-2026-2641
CVE-2026-2641 is a low-severity vulnerability with a CVSS 3.x base score of 3.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-404.
Key facts
- Severity: Low (CVSS 3.x base score 3.3)
- CVSS v2: 1.7
- CVSS v4: 1.9
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-7652
- Weakness: CWE-404
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2026-2641?
- 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.
- How severe is CVE-2026-2641?
- CVE-2026-2641 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
- Is CVE-2026-2641 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-2641?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-2641 have an EU (EUVD) identifier?
- Yes. CVE-2026-2641 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-7652.
- When was CVE-2026-2641 published?
- CVE-2026-2641 was published on 2026-02-18 and last updated on 2026-06-17.
References
- https://github.com/oneafter/0116/blob/main/poc.v
- https://github.com/universal-ctags/ctags/
- https://github.com/universal-ctags/ctags/issues/4369
- https://vuldb.com/?ctiid.346397
- https://vuldb.com/?id.346397
- https://vuldb.com/?submit.752768
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