CVE-2026-39316

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Source
https://cve.org/CVERecord?id=CVE-2026-39316
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-39316.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-39316
Aliases
  • GHSA-pjv5-prqp-46rg
Downstream
Published
2026-04-07T17:00:26.801Z
Modified
2026-04-08T12:26:28.462424Z
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 a use-after-free in `cupsdDeleteTemporaryPrinters` via dangling subscription pointer
Details

OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving cupsdsubscriptiont.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap grooming, this can be leveraged for code execution.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/39xxx/CVE-2026-39316.json",
    "cwe_ids": [
        "CWE-416"
    ],
    "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-2026-39316.json"