Information disclosure in CUPS
Priority LOW 30CWE-200Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 8 fixed, 2 without a fix
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-200.
Summary
The session cookie generated by the CUPS web interface was easy to guess on Linux, allowing unauthorized scripted access to the web interface when the web interface is enabled. This issue affected versions prior to v2.2.10.
Why it matters now
EPSS 0.01841 79th percentileScored 2026-11-07
Fix Partial Red Hat: 1 advisoryRed Hat: 8 fixed, 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | CUPS | Versions prior to: v2.2.10 | — | No fix listed | CNA |
- CUPS Vendor— Affected Versions prior to: v2.2.10 Fixed in — No fix listed CNA
Remediation
Red Hat 1 advisory
- RHSA-2020:1050 Released 2020-03-31 · Red Hat rating Moderatecups security and bug fix update
- Red Hat Enterprise Linux Client (v. 7) cups-1:1.6.3-43.el7, cups-client-1:1.6.3-43.el7, cups-filesystem-1:1.6.3-43.el7 +2
- Red Hat Enterprise Linux Client Optional (v. 7) cups-devel-1:1.6.3-43.el7, cups-ipptool-1:1.6.3-43.el7
- Red Hat Enterprise Linux ComputeNode (v. 7) cups-1:1.6.3-43.el7, cups-client-1:1.6.3-43.el7, cups-filesystem-1:1.6.3-43.el7 +2
- Red Hat Enterprise Linux ComputeNode Optional (v. 7) cups-devel-1:1.6.3-43.el7, cups-ipptool-1:1.6.3-43.el7
- Red Hat Enterprise Linux Server (v. 7) cups-1:1.6.3-43.el7, cups-client-1:1.6.3-43.el7, cups-devel-1:1.6.3-43.el7 +5
- Red Hat Enterprise Linux Server Optional (v. 7) cups-ipptool-1:1.6.3-43.el7
- Red Hat Enterprise Linux Workstation (v. 7) cups-1:1.6.3-43.el7, cups-client-1:1.6.3-43.el7, cups-devel-1:1.6.3-43.el7 +3
- Red Hat Enterprise Linux Workstation Optional (v. 7) cups-ipptool-1:1.6.3-43.el7
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 5 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Will not fix |
| Red Hat Enterprise Linux Client (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux Client Optional (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux ComputeNode (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux ComputeNode Optional (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux Server (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux Server Optional (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux Workstation (v. 7) | Fixed | RHSA-2020:1050 |
| Red Hat Enterprise Linux Workstation Optional (v. 7) | Fixed | RHSA-2020:1050 |
Not affected: 2 products
- Red Hat Enterprise Linux 8
- Red Hat Virtualization 4
Timeline
- 2026-10-02 Threatist record created from CVE-2018-4300
- 2026-10-03 Alias added: GHSA-7w9x-rg6m-2fh9
References
More Apple Cups vulnerabilities
- TI-2008-03486 The Hewlett-Packard Graphics Language (HPGL) filter in CUPS before 1.3.9 allows remote… CVSS 2.0HIGH 10.0
- TI-2008-00044 Multiple buffer overflows in the HP-GL/2-to-PostScript filter in CUPS before 1.3.6 might… CVSS 2.0HIGH 10.0
- TI-2004-02026 CUPS before 1.1.21rc1 treats a Location directive in cupsd.conf as case sensitive, which… CVSS 3.1CRITICAL 9.8
- TI-2010-02814 ipp.c in cupsd in CUPS 1.4.4 and earlier does not properly allocate memory for attribute… CVSS 3.1CRITICAL 9.8
- TI-2009-00903 The ippReadIO function in cups/ipp.c in cupsd in CUPS before 1.3.10 does not properly… CVSS 3.1HIGH 7.5
- TI-2008-04935 The web interface (cgi-bin/admin.c) in CUPS before 1.3.8 uses the guest username when a… CVSS 2.0HIGH 10.0
Sources
- CVE-2018-4300 · CVE Program
- CVE-2018-4300 · NVD
- FIRST EPSS
- GHSA-7w9x-rg6m-2fh9 · GitHub Advisory Database · CC BY 4.0
- CVE-2018-4300 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences