Medium severity · published May 12, 2026
CVE-2026-34671
CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)
6.2
CVSS
0.2%
EPSS
No
On KEV
Description
CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Integer Overflow or Wraparound vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Content Credentials JS SDK · Adobe
through @contentauth/c2pa-web@0.7.0 · source: vendor
CC
Content Credentials Rust SDK · Adobe
through c2pa-v0.78.2 · source: vendor
C2
C2pa · Adobe
before 0.80.1 · source: NVD
C2
C2pa-web · Adobe
before 0.7.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-34671
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-34671
Vendor Advisory
https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html
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