Medium severity · published Sep 22, 2026
CVE-2026-89277
CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)
5.5
CVSS
0.3%
EPSS
No
On KEV
Description
CAI Content Credentials is 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 requires user interaction in that a victim must visit a maliciously crafted URL or interact with a compromised web page.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 16% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
CC
Content Credentials Command-Line Tool · Adobe
through c2patool-v0.26.70 · source: vendor
CC
Content Credentials Rust SDK · Adobe
through c2pa-v0.89.2 · source: vendor
C2
C2pa · Adobe
before 0.90.17 · source: NVD
C2
C2patool · Adobe
before 0.27.17 · source: NVD
Affected product
CC
Content Credentials Command-Line Tool
Adobe
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-89277
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-89277
Vendor Advisory
https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-147.html
More from Content Credentials Command-Line Tool
8.2
CVE-2026-48290
CAI Content Credentials | Server-Side Request Forgery (SSRF) (CWE-918)
7.5
CVE-2026-75632
CAI Content Credentials | Uncontrolled Resource Consumption (CWE-400)
7.5
CVE-2026-19480
CAI Content Credentials | Improper Input Validation (CWE-20)
7.5
CVE-2026-48438
CAI Content Credentials | NULL Pointer Dereference (CWE-476)
7.5
CVE-2026-48439
CAI Content Credentials | Uncontrolled Resource Consumption (CWE-400)
