What is CVE-2026-76189?
CAI Content Credentials is affected by an Integer Underflow (Wrap 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.
The record classifies CVE-2026-76189 under weakness class CWE-191. Its CVSS v3 base vector states that the flaw requires local access to the host, needs no prior authentication, needs no user interaction, and has high impact on availability. 2 affected-product entries are recorded, across 1 vendor, listed below. The identifier was first published 79 days ago.
Severity and exploitation probability
- CVSS v3.1 base score
- 6.2 — MEDIUM
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS (FIRST)
- 0.2% probability of exploitation in the next 30 days, higher than 16.2% of all scored CVEs
- CISA KEV
- Not listed in the CISA Known Exploited Vulnerabilities catalog
- Threadlinqs priority
- 3.7/10 — a Threadlinqs composite of the CVSS base score, the EPSS percentile and public exploit availability
- Published
- 2026-08-25
Is CVE-2026-76189 being exploited?
It currently carries a trending score of 28 in the Threadlinqs vulnerability feed.
Affected products and versions
- Adobe: C2PA Tool, Content Credentials Rust SDK
How to fix CVE-2026-76189
Vendor advisory: https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-110.html. Apply the vendor fix referenced above to every affected product listed in this record, then confirm the running version against the vendor advisory.
Threat activity tracking CVE-2026-76189
1 tracked threat in the Threadlinqs corpus references CVE-2026-76189, either in the campaign’s CVE list or as an indicator on the campaign record.
Sources
Enriched from CVE.org, FIRST EPSS.