CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which…
Priority MEDIUM 53CWE-178Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat.
Summary
CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which allows attackers to bypass intended ACLs via a printer name containing uppercase or lowercase letters that are different from what is specified in the directive.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02072 81st percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2005:571 Released 2005-07-14 · Red Hat rating Moderatecups security update
- Red Hat Desktop version 3 cups-1:1.1.17-13.3.29, cups-1:1.1.17-13.3.29.i386, cups-devel-1:1.1.17-13.3.29 +3
- Red Hat Enterprise Linux AS version 3 cups-1:1.1.17-13.3.29, cups-1:1.1.17-13.3.29.i386, cups-1:1.1.17-13.3.29.ia64 +9
- Red Hat Enterprise Linux ES version 3 cups-1:1.1.17-13.3.29, cups-1:1.1.17-13.3.29.i386, cups-1:1.1.17-13.3.29.ia64 +6
- Red Hat Enterprise Linux WS version 3 cups-1:1.1.17-13.3.29, cups-1:1.1.17-13.3.29.i386, cups-1:1.1.17-13.3.29.ia64 +6
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Desktop version 3 | Fixed | RHSA-2005:571 |
| Red Hat Enterprise Linux AS version 3 | Fixed | RHSA-2005:571 |
| Red Hat Enterprise Linux ES version 3 | Fixed | RHSA-2005:571 |
| Red Hat Enterprise Linux WS version 3 | Fixed | RHSA-2005:571 |
Timeline
- 2026-10-02 Threatist record created from CVE-2004-2154
- 2026-10-03 Alias added: GHSA-vp74-83h5-6967
References
Sources
- CVE-2004-2154 · CVE Program
- CVE-2004-2154 · NVD
- FIRST EPSS
- GHSA-vp74-83h5-6967 · GitHub Advisory Database · CC BY 4.0
- CVE-2004-2154 · Red Hat security data · CC BY 4.0
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