CVE-2026-48295: Adobe C2pa Information Disclosure Flaw

CVE-2026-48295 Overview

CVE-2026-48295 affects Adobe's Content Authenticity Initiative (CAI) Content Credentials software, including the c2pa Rust library, the c2pa-web Node.js package, and the c2patool command-line utility. The vulnerability stems from insufficiently protected credentials [CWE-522] and enables unauthorized read access to sensitive information. An attacker can exploit this flaw over the network without user interaction and without requiring privileges. The issue impacts CAI SDK deployments across Windows, macOS, Linux, iOS, and Android platforms.

Critical Impact
A remote, unauthenticated attacker can retrieve sensitive credential material from vulnerable CAI Content Credentials deployments, exposing signing keys and authentication data used to assert media provenance.

Affected Products

Adobe c2pa (Rust)
Adobe c2pa-web (Node.js)
Adobe c2patool

Discovery Timeline

2026-07-14 - CVE CVE-2026-48295 published to NVD
2026-07-16 - Last updated in NVD database

Technical Details for CVE-2026-48295

Vulnerability Analysis

The Coalition for Content Provenance and Authenticity (C2PA) libraries maintained by Adobe implement the Content Credentials specification, which cryptographically binds provenance metadata to media assets. Signing this metadata requires access to private keys and other credential material. The vulnerability arises because these credentials are not protected with sufficient controls, allowing them to be read by unauthorized parties.

Because exploitation requires no authentication and no user interaction, an attacker with network reachability to a vulnerable component can extract credential data directly. The confidentiality impact is high, while integrity and availability of the target system are not affected. Successful exploitation exposes signing material used to establish trust in media provenance, undermining the guarantees that C2PA is intended to provide.

Root Cause

The root cause is classified under [CWE-522] Insufficiently Protected Credentials. The affected CAI SDK components store or transmit credential material without adequate access controls, encryption, or isolation. This allows an actor without prior authorization to read credential values that should be restricted to the signing process.

Attack Vector

The attack vector is network based with low complexity. An attacker interacts with an exposed C2PA component or endpoint and requests credential data through an unauthenticated interface. Because the vulnerability affects the shared SDK, any application built on c2pa, c2pa-web, or c2patool that exposes the vulnerable surface inherits the risk. No exploitation code has been published, and the CVE is not listed in the CISA Known Exploited Vulnerabilities catalog.

No verified public exploit code is available. See the Adobe Security Bulletin APSB26-80 for vendor technical details.

Detection Methods for CVE-2026-48295

Indicators of Compromise

Unexpected outbound requests to endpoints hosted by applications embedding c2pa, c2pa-web, or c2patool.
Access log entries showing unauthenticated reads of credential, key, or configuration paths served by C2PA-integrated services.
Newly signed Content Credentials assertions originating from unfamiliar hosts or accounts, indicating potential misuse of leaked signing material.

Detection Strategies

Inventory all applications and build pipelines that link against the Adobe C2PA Rust crate, the c2pa-web npm package, or ship c2patool, and correlate installed versions against the fixed releases in APSB26-80.
Inspect HTTP request patterns for enumeration of credential-related routes exposed by C2PA-enabled services and alert on unauthenticated access.
Monitor filesystem and secret-store access to C2PA signing keys, flagging reads by processes other than the expected signing binary.

Monitoring Recommendations

Ingest application, web server, and endpoint telemetry into a centralized analytics platform and retain access logs for C2PA-enabled services long enough to support retrospective hunts.
Configure alerts on cryptographic key material access outside of scheduled signing jobs.
Track new Content Credentials manifests signed with organization-controlled keys to detect misuse after potential credential exposure.

How to Mitigate CVE-2026-48295

Immediate Actions Required

Upgrade c2pa, c2pa-web, and c2patool to the fixed versions listed in Adobe Security Bulletin APSB26-80.
Rotate any signing keys or credentials that were accessible to vulnerable deployments, and revoke certificates that may have been exposed.
Audit outbound C2PA-signed assets produced during the exposure window for unauthorized signatures.

Patch Information

Adobe published fixes for the CAI Content Credentials SDK in security bulletin APSB26-80. Update the c2pa Rust crate, the c2pa-web Node.js package, and the c2patool binary to the versions specified in the Adobe advisory. Rebuild and redeploy any downstream applications that statically link the affected libraries.

Workarounds

Restrict network exposure of services built on the CAI SDK to trusted networks until patched builds are deployed.
Store C2PA signing keys in a hardware security module or dedicated secrets manager so they are not directly readable by the SDK process.
Enforce least-privilege access controls on any endpoint or file path that the SDK uses to load credential material.

bash

# Example: update the c2patool binary and c2pa-web package to fixed releases
npm install c2pa-web@latest
cargo update -p c2pa
# Verify c2patool version matches the fixed release in APSB26-80
c2patool --version