Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.

CVE-2026-34657

CVE-2026-34657MEDIUM

Adobe Content Credentials Rust SDK — CAI Content Credentials | Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CWE-22)

  AV  AC  PR  UI  S  C  I  A   CVSS    EPSS   %ile   KEV
   L   L   N   R  U  N  H  N    5.5   .0029   19.5     —

AFFECTED
  Product                       Versions     Fixed
  Content Credentials Rust SDK  unspecified  c2pa-v0.85.1
  Content Credentials JS SDK    unspecified  @contentauth/c2pa-web@0.8.3

TIMELINE
  Mar 30  Reserved by adobe
  Jun 9   Published (CNA: adobe)
  Aug 26  PATCH SHIPPED — CVE-2026-34657 (Adobe Content Credentials Rust SDK). Fixed in Content Credentials Rust SDK c2pa-v0.85.1.

CWE-22 · CNA: adobe · CVSS v3.1 · 1 reference · NVD status: Analyzed

Description

CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability that could result in an arbitrary file system write. An attacker could leverage this vulnerability to write to unauthorized files or directories outside of intended restrictions. Exploitation of this issue requires user interaction in that a victim must extract a maliciously crafted file.

Lifecycle

Complete event history — 3 events, chronological
Date	Event	Detail
March 30, 2026	Reserved	Reserved by adobe
June 9, 2026	Published	Published (CNA: adobe)
August 26, 2026	PATCH SHIPPED	PATCH SHIPPED — CVE-2026-34657 (Adobe Content Credentials Rust SDK). Fixed in Content Credentials Rust SDK c2pa-v0.85.1.

Affected

Affected products and packages — 2 rows
Vendor	Product / Package	Ecosystem	Version introduced	Fixed
Adobe	Content Credentials Rust SDK	—	—	c2pa-v0.85.1
Adobe	Content Credentials JS SDK	—	—	@contentauth/c2pa-web@0.8.3

Weaknesses

CWE-22

References (1)

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

Authoritative record: CVE-2026-34657 at cve.org

Vendors: adobe

Weaknesses: CWE-22

About this page

This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-34657 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.