Public vulnerability disclosure

CVE-2026-123262

CAI Content Credentials | Improper Verification of Cryptographic Signature (CWE-347)

publishedCWE-347

CAI Content Credentials is affected by an Improper Verification of Cryptographic Signature vulnerability that could result in a Security feature bypass. An attacker could leverage this vulnerability to bypass security measures and gain unauthorized write access. Exploit depends on conditions beyond the attacker's control. Exploitation of this issue does not require user interaction.

Technical severity5.9 mediumCVSS 3.1 · CNA: adobe
Published2026-11-10Source updated 2026-11-12
Collected2026-11-123 attributed sources

Fixes and workarounds

No remediation reported in collected sources.

Missing remediation information is not evidence that no patch exists.

Affected products and versions

Affected products, source version ranges and reporting authorities
ProductVersionsAuthority
Content Credentials Rust SDK
Adobe
≥ 0; ≤ c2pa-v0.91.10 (affected, custom)
c2pa-v0.91.11 (unaffected, custom)
Other versions: unaffected
CNA: adobe
C2PA Tool
Adobe
≥ 0; ≤ c2patool-v0.28.5 (affected, custom)
c2patool-v0.28.6 (unaffected, custom)
Other versions: unaffected
CNA: adobe

Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.

CVSS assessments

CVSS scores, vectors and reporting authorities
Version / scoreVectorAuthority
3.1 / 5.9
medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NCNA: adobe
3.1 / 5.9
medium
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:NNVD: [email protected]

Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

References

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