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C2paApplication · Adobe

CVE-2026-34670

MEDIUM · 6.2 CVSS v3.1 Published 2026-05-12
Fix available
A fix is available. Upgrade to 0.7.1 / 0.80.1 or later.
See remediation →
67/100
Remediation priority · Elevated
No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
CAI Content Credentials versions [email protected], 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.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

CAI Content Credentials libraries ([email protected] and c2pa-v0.78.2 and earlier) contain an improper input validation vulnerability that allows an attacker to crash the application and cause a denial-of-service condition without any user interaction.

MitigationUpgrade to patched versions of c2pa-web and c2pa libraries that address the input validation vulnerability. Until patches are available, implement rate limiting and request validation at the application layer to mitigate potential DoS attempts.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.

NVD · CPE data
C2paApplication
Affected:< 0.80.1
C2pa WebApplication
Affected:< 0.7.1

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Local
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Check Adobe C2pa library version
    Inspect your project's dependency manifest (package.json, Cargo.toml, or similar) for the c2pa library. If using npm, run 'npm list c2pa' or check the package.json dependencies section.
    Affected if Installed version is less than 0.80.1
  2. Check Adobe C2pa Web library version
    Inspect your project's dependency manifest for the c2pa-web library. If using npm, run 'npm list c2pa-web' or check the package.json dependencies section.
    Affected if Installed version is less than 0.7.1
  3. Verify application uses CAI Content Credentials
    Search your codebase for imports or usage of c2pa or c2pa-web libraries (e.g., 'import { ... } from "c2pa"' or 'import { ... } from "c2pa-web"').
    Affected if The application imports or uses either c2pa or c2pa-web libraries

You are affected if your application uses Adobe C2pa library versions below 0.80.1 or c2pa-web library versions below 0.7.1, and the input validation flaw can be triggered by processing crafted content credentials.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Upgrade available Upgrade to 0.7.1 / 0.80.1 or later
Fixed in 0.7.10.80.1
Interim mitigation

Upgrade to patched versions of c2pa-web and c2pa libraries that address the input validation vulnerability. Until patches are available, implement rate limiting and request validation at the application layer to mitigate potential DoS attempts.

Recommended fix High confidence

C2pa >= 0.80.1; C2pa Web >= 0.7.1

  1. Identify which C2pa package is in use: c2pa (Rust SDK) or c2pa-web (JavaScript/Web SDK)
  2. If using c2pa (Rust SDK), upgrade to version 0.80.1 or higher using the appropriate package manager (e.g., cargo update)
  3. If using c2pa-web (JavaScript SDK), upgrade to version 0.7.1 or higher (e.g., npm update c2pa-web or yarn upgrade c2pa-web)
  4. Verify the installed version matches or exceeds the fixed release versions
  5. Test the application to confirm the denial-of-service vulnerability is resolved
Caveat No breaking changes documented; standard version upgrade with regression testing recommended

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in C2pa Scoped from the published advisory
  • Consultation2.0 h
  • Implementation4.0 h
  • Testing3.0 h
  • Review / QA2.0 h
11.0 hours of engineering $1,930
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2026-34670 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
  • Verified mitigations, workarounds, and config changes
  • Version or environment caveats, and links to real fixes
  • No weaponised exploit code, or anything meant to cause harm
  • No spam, self-promotion, credentials, or personal data