CVE-2026-39314

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Source
https://cve.org/CVERecord?id=CVE-2026-39314
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-39314.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-39314
Aliases
  • GHSA-pp8w-2g52-7vj7
Downstream
Published
2026-04-07T16:59:23.808Z
Modified
2026-04-08T12:15:09.300952Z
Severity
  • 4.0 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
CUPS has an integer underflow in `_ppdCreateFromIPP` causes root cupsd crash via negative `job-password-supported`
Details

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, an integer underflow vulnerability in ppdCreateFromIPP() (cups/ppd-cache.c) allows any unprivileged local user to crash the cupsd root process by supplying a negative job-password-supported IPP attribute. The bounds check only caps the upper bound, so a negative value passes validation, is cast to sizet (wrapping to ~2^64), and is used as the length argument to memset() on a 33-byte stack buffer. This causes an immediate SIGSEGV in the cupsd root process. Combined with systemd's Restart=on-failure, an attacker can repeat the crash for sustained denial of service.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39314.json",
    "cwe_ids": [
        "CWE-191"
    ],
    "cna_assigner": "GitHub_M"
}
References

Affected packages

Git / github.com/openprinting/cups

Affected ranges

Type
GIT
Repo
https://github.com/openprinting/cups
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last affected
7523763f00d2063f88026d93bc5b29806240de2b
Database specific 
{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "2.4.16"
        }
    ]
}

Affected versions

v2.*
v2.2.0
v2.2.1
v2.2.2
v2.2.3
v2.2.4
v2.2.5
v2.2.6
v2.2b1
v2.2b2
v2.2rc1
v2.3.0
v2.3.1
v2.3.3
v2.3.3op1
v2.3.3op2
v2.3b1
v2.3b2
v2.3b3
v2.3b4
v2.3b5
v2.3b6
v2.3b7
v2.3b8
v2.3rc1
v2.4.0
v2.4.1
v2.4.10
v2.4.11
v2.4.12
v2.4.13
v2.4.14
v2.4.15
v2.4.16
v2.4.2
v2.4.3
v2.4.4
v2.4.5
v2.4.6
v2.4.7
v2.4.8
v2.4.9
v2.4b1
v2.4rc1

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-39314.json"