CVE-2026-89277

CAI Content Credentials | Integer Overflow or Wraparound (CWE-190)

MEDIUM
5.5
CVSS Score
Published: September 22, 2026 at 06:50 PM UTC
Updated: October 15, 2026 at 05:54 PM UTC
2 products affected across 1 vendorC2PAContent Credentials Command-Line Tool (c2patool)

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

95%
v < 0.90.17
Vendor states this is fixed in c2pa-v0.90.17 (unaffected)
v < 0.27.17
Vendor states this is fixed in c2patool-v0.27.17 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.5MEDIUMadobe
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-190

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