🛡️ CLSA-2026-1778253061 — cups

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Fix CVE(s): CVE-2026-27447 * SECURITY UPDATE: fix authorization bypass in cupsd caused by case-insensitive comparison of local user and group names. - debian/patches/CVE-2026-27447.patch: compare usernames against the canonical pw_name from getpwnam() with strcmp() in cupsdCheckGroup() and cupsdIsAuthorized() in scheduler/auth.c; include the upstream follow-up "Fix unauthenticated print policies" (Issue #1557) so CUPSD_AUTH_NONE policies still match users that do not have a local account. - CVE-2026-27447.

Affected software and timeline

Affected software: cups (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-bsd (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-client (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-common (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-core-drivers (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-daemon (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-ipp-utils (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-ppdc (fixed in 2.2.10-6+deb10u10+tuxcare.els3), cups-server-common (fixed in 2.2.10-6+deb10u10+tuxcare.els3), libcups2 (fixed in 2.2.10-6+deb10u10+tuxcare.els3), libcups2-dev (fixed in 2.2.10-6+deb10u10+tuxcare.els3), libcupsimage2 (fixed in 2.2.10-6+deb10u10+tuxcare.els3) and libcupsimage2-dev (fixed in 2.2.10-6+deb10u10+tuxcare.els3). Published on 8 May 2026 and last revised on 4 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

errata.tuxcare.com (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-05-08
Updated 2026-08-12
Modified 2026-06-04
Fix URL N/A

Affected Packages

Software From version Fixed in
cups — 2.2.10-6+deb10u10+tuxcare.els3
cups-bsd — 2.2.10-6+deb10u10+tuxcare.els3
cups-client — 2.2.10-6+deb10u10+tuxcare.els3
cups-common — 2.2.10-6+deb10u10+tuxcare.els3
cups-core-drivers — 2.2.10-6+deb10u10+tuxcare.els3
cups-daemon — 2.2.10-6+deb10u10+tuxcare.els3
cups-ipp-utils — 2.2.10-6+deb10u10+tuxcare.els3
cups-ppdc — 2.2.10-6+deb10u10+tuxcare.els3
cups-server-common — 2.2.10-6+deb10u10+tuxcare.els3
libcups2 — 2.2.10-6+deb10u10+tuxcare.els3
libcups2-dev — 2.2.10-6+deb10u10+tuxcare.els3
libcupsimage2 — 2.2.10-6+deb10u10+tuxcare.els3
libcupsimage2-dev — 2.2.10-6+deb10u10+tuxcare.els3

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Part of CLSA 2026 in the advisory index.