6.2Medium
Adobe C2pa
CVE-2026-34671
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.
What this means for your business
- It affects Adobe C2pa. It matters if your company, or a supplier that handles your data, runs it.
- An attacker can use it only with access to the machine itself, without a login, and without anyone at your company clicking anything.
- FIRST's prediction model gives it a 0.2% chance of attack attempts being seen in the next 30 days, ranking above 9% of all known flaws.
What to do
- 1Check whether your company or your suppliers run Adobe C2pa, and which version. The affected versions are listed further down this page.
- 2If you do, apply the vendor's fix. A patch or vendor advisory has been published.
Not sure if your company is exposed?
Fastnexa’s certified penetration testers can check whether attackers could use this flaw, or others like it, against your websites, apps and network. The full test is free for our first 10 founding clients until 31 December 2026.
Scoring
- CVSS
- 6.2 (v3.1)
- Vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness
- CWE-190
- Assigned by
- psirt@adobe.com
Dates
- Published
- 2026-05-12
- Last modified
- 2026-08-28
- Sources
- NVD
Affected products
- Adobe C2pa- 0.80.1
- Adobe C2pa-Web- 0.7.1
As listed in the NVD configuration data. Not a statement about your estate.