---
id: CVE-2026-34666
title: >-
  CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are
  affected by an Improper Input Validation vulnerability that could result in an
  application denial-of-service
summary: >-
  CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are
  affected by an Improper Input Validation vulnerability that could result in an
  application denial-of-service. An attacker could exploit this vulnerability to
  c…
severity: medium
cvss: 6.2
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'
cwe:
  - CWE-20
vendor: adobe
product: c2pa
affected:
  - c2pa < 0.80.1
  - c2pa-web < 0.7.1
patched:
  - c2pa 0.80.1
  - c2pa-web 0.7.1
published: '2026-05-12'
updated: '2026-08-27'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-34666'
references:
  - url: >-
      https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-53.html
    label: psirt@adobe.com
tags:
  - nvd
epss: 0.00267
epssPercentile: 0.16674
ingestedAt: '2026-08-27T20:07:37.842Z'
---

## Overview

CAI Content Credentials versions c2pa-web@0.7.0, c2pa-v0.78.2 and earlier are affected by an Improper Input Validation 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.

## Affected

- `c2pa < 0.80.1`
- `c2pa-web < 0.7.1`

## Remediation

Upgrade past the affected range:

- `c2pa 0.80.1`
- `c2pa-web 0.7.1`