CVE-2026-42310

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Source
https://cve.org/CVERecord?id=CVE-2026-42310
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42310.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-42310
Aliases
Downstream
Related
Published
2026-05-09T04:10:48.395Z
Modified
2026-06-18T03:55:22.219934762Z
Severity
  • 5.1 (Medium) CVSS_V4 - CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N CVSS Calculator
Summary
Pillow: PDF Parsing Trailer Infinite Loop (DoS)
Details

Pillow is a Python imaging library. From version 4.2.0 to before version 12.2.0, an attacker can supply a malicious PDF that causes the process to hang indefinitely, consuming 100% CPU and making the application unresponsive. This issue has been patched in version 12.2.0.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/42xxx/CVE-2026-42310.json",
    "cwe_ids": [
        "CWE-835"
    ]
}
References

Affected packages

Git / github.com/python-pillow/pillow

Affected ranges

Type
GIT
Repo
https://github.com/python-pillow/pillow
Events
Introduced
acb19d8e45699bf961604e48b28002b099250ddd
Fixed
3c41c095064200a02672d89cc5ff629eaf4b0d4f
Fixed
3bf614e4b8615d0ce1d5039efaf6db447fe7c468
Database specific 
{
    "source": [
        "CPE_RANGE",
        "REFERENCES"
    ],
    "extracted_events": [
        {
            "introduced": "4.2.0"
        },
        {
            "fixed": "12.2.0"
        }
    ],
    "cpe": "cpe:2.3:a:python:pillow:*:*:*:*:*:*:*:*"
}

Affected versions

10.*
10.0.0
10.1.0
10.2.0
10.3.0
10.4.0
11.*
11.0.0
11.1.0
11.2.1
11.3.0
12.*
12.0.0
12.1.0
4.*
4.2.0
4.3.0
5.*
5.0.0
5.1.0
5.2.0
5.3.0
5.4.0
6.*
6.0.0
6.1.0
6.2.0
7.*
7.0.0
7.1.0
7.2.0
8.*
8.0.0
8.1.0
8.2.0
8.3.0
8.4.0
9.*
9.0.0
9.1.0
9.2.0
9.3.0
9.4.0
9.5.0

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-42310.json"