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VULNERABILITIES

CVE-2026-87876 Details

Description

Two case-insensitive comparisons on request-derived usernames outside the main authorization path in CUPS's scheduler (printer ACL validation and private-attribute filtering) could allow bypass of username-based access controls in certain configurations.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:3 LOWVector:CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://github.com/OpenPrinting/cups/security/advisories/GHSA-r8jp-q6fh-g5r2 CISA-ADP
https://access.redhat.com/errata/RHSA-2026:67568 [email protected]
https://access.redhat.com/security/cve/CVE-2026-87876 [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=2530991 [email protected]
https://github.com/OpenPrinting/cups/commit/88e67c00c130a45f3a1edf36686f7a0b2982fef8 [email protected]

see all 7 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-178Improper Handling of Case Sensitivity[email protected]

Affected Products

No affected product data is available for this CVE.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-87876
NVD Published Date:
Sep 9, 2026
NVD Last Modified:
Sep 21, 2026
Source:
[email protected]
CVE-2026-87876 Details - Not Deferred