🛡️ CVE-2026-34990 on BellSoft — cups

⚪ Unknown ✅ No Known Exploit OSV

N/A

CVSS Score

0 Low4 Medium7 High9 Critical10

Distribution advisory

This page covers CVE-2026-34990 as tracked by BellSoft, for the package cups. The fix is available in version 2.4.18-r0; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

BELL-CVE-2026-34990 is classified as CWE-287: Improper Authentication. The identity of the caller is not established correctly, so an attacker can act as another user.

Affected software

BELL-CVE-2026-34990 is recorded against 1 package.

cups (from 2.4.2-r5 up to 2.4.18-r0)

Timeline and source

Published on 4 April 2026 and last revised on 4 May 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

docs.bell-sw.com (Advisory)

CVE-2026-34990 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Alpine Base record Debian Debian 12 (Root.io)Ubuntu

Details

Severity Unknown

CVSS Score N/A

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

CWE N/A

Public Exploit ✅ No

Source OSV

Published 2026-04-04

Updated 2026-08-12

Modified 2026-05-04

Fix URL N/A

Affected Packages

Software	From version	Fixed in
cups	2.4.2-r5	2.4.18-r0

References

ADVISORY https://docs.bell-sw.com/security/cves/CVE-2026-34990

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