Unauthenticated security bypass granting unauthorized write access
Published Oct 13, 2026 · Updated Oct 13, 2026
Signature verification failure in Adobe C2PA Tool 0.27.15 and earlier allows remote attackers to write data via unspecified vectors. Adobe has not disclosed the faulty verification operation or affected code path; Content Credentials Rust SDK 0.90.15 and earlier and Content Credentials JS SDK 0.13.4 and earlier are also affected. Exploitation requires neither authentication nor user interaction, but the specific writable data and deployment prerequisites remain undisclosed.
Summary
What happened
Signature verification failure in Adobe C2PA Tool 0.27.15 and earlier allows remote attackers to write data via unspecified vectors. Adobe has not disclosed the faulty verification operation or affected code path; Content Credentials Rust SDK 0.90.15 and earlier and Content Credentials JS SDK 0.13.4 and earlier are also affected. Exploitation requires neither authentication nor user interaction, but the specific writable data and deployment prerequisites remain undisclosed.
The record
- CVE
- CVE-2026-95633
- Published
- Oct 13, 2026
- Updated
- Oct 13, 2026
- Vendor
- Adobe Inc.
- Product
- C2PA Tool
- Classifications
- CWE-347
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Oct 13, 2026CVE publishedPublication date reported by the CVE source.
- Oct 13, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <=c2patool-v0.27.15
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Activity data is delayed. The latest report is Sep 28, 2026.
Weakness, pattern, technique
Public exploit references
No public exploit references are available in this record.
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Technologies
Your stack
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Your stack
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