Is CVE-2026-34657 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-34657 being exploited in the wild.

How severe is CVE-2026-34657?

Medium severity, with a CVSS score of 5.5, published 9 June 2026.

Which products and versions are affected?

Adobe Content Authenticity SDK (c2pa-rs) 0.80.1 and earlier; Adobe Content Authenticity SDK (c2pa-web) 0.7.1 and earlier.

Is there a fix for CVE-2026-34657?

No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

How is CVE-2026-34657 attacked?

It is attacked with local access, in a software library.

Am I affected by CVE-2026-34657?

Check whether you run Adobe Content Authenticity SDK (c2pa-rs) or Adobe Content Authenticity SDK (c2pa-web) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-34657: Adobe Content Credentials path traversal in Content Authenticity SDK

CVE-2026-34657 · Severity: medium · CVSS 5.5 · Published 2026-06-09

Adobe Content Credentials, a tool used to verify the origin and history of digital media, contains a security flaw that could allow an attacker to write files to unauthorized locations on a user's computer. To exploit this, an attacker would need to trick a user into extracting a specially crafted malicious file. This could lead to the corruption of system files or the placement of unauthorized data on the victim's machine.

Technologies: Adobe Content Authenticity SDK (c2pa-web). Vendors: Adobe.

Quick answers

Is CVE-2026-34657 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-34657 being exploited in the wild.
How severe is CVE-2026-34657?: Medium severity, with a CVSS score of 5.5, published 9 June 2026.
Which products and versions are affected?: Adobe Content Authenticity SDK (c2pa-rs) 0.80.1 and earlier; Adobe Content Authenticity SDK (c2pa-web) 0.7.1 and earlier.
Is there a fix for CVE-2026-34657?: No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-34657 attacked?: It is attacked with local access, in a software library.
Am I affected by CVE-2026-34657?: Check whether you run Adobe Content Authenticity SDK (c2pa-rs) or Adobe Content Authenticity SDK (c2pa-web) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

A path traversal vulnerability (CWE-22) exists in the Adobe Content Authenticity SDK (specifically c2pa-web and c2pa-rs components). The flaw stems from improper limitation of pathnames during file extraction processes. An attacker can exploit this by providing a maliciously crafted file that, when extracted by a victim, writes data to unauthorized directories outside of the intended destination. This is a local attack requiring user interaction (UI:R) and can result in a high impact on system integrity (I:H) by overwriting or creating arbitrary files.

Affected products

Adobe Content Authenticity SDK (c2pa-web) 0.7.1 and earlier
Adobe Content Authenticity SDK (c2pa-rs) 0.80.1 and earlier

Timeline

2026-06-09: disclosed: Initial disclosure by Adobe
2026-06-09: advisory: NVD publication date

References

https://helpx.adobe.com/security/products/content-authenticity-sdk/apsb26-61.html

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