What is CVE-2026-34679?

CVE-2026-34679 is a medium-severity vulnerability in Adobe C2pa, classified under Improper Input Validation. CVSS score: 6.2/10. Published 2026-05-12.

How severe is CVE-2026-34679?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Improper input validation in Adobe C2pa

CVE-2026-34679

CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to cra…

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.002 (9.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Adobe C2pa
Adobe C2pa-web
Adobe Cai Content Credentials — versions 0

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

psirt@adobe.com (vendor-advisory, Vendor Advisory)

Frequently asked questions

What is CVE-2026-34679?: CVE-2026-34679 is a medium-severity vulnerability in Adobe C2pa, classified under Improper Input Validation. CVSS score: 6.2/10. Published 2026-05-12.
How severe is CVE-2026-34679?: Medium severity. CVSS v3 base score is 6.2 out of 10.