# CVE-2026-56346: AVideo - Unauthenticated PGP Message Decryption via decryptMessage.json.php Endpoint

> Unauthenticated attackers can decrypt PGP messages via an exposed endpoint, exposing key material and causing resource exhaustion.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Jun 2026
- **Updated:** 8 Jul 2026
- **Also known as:** GHSA-5x2w-37xf-7962

## What is CVE-2026-56346?

CVE-2026-56346 is a medium-severity authentication bypass vulnerability in AVideo, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

AVideo through version 25.0 contains an authentication bypass vulnerability in the decryptMessage.json.php endpoint that allows unauthenticated users to decrypt PGP messages. Remote attackers can submit private keys, ciphertext, and passphrases to perform server-side decryption without credentials, exposing key material to logs and enabling resource exhaustion attacks.

Weakness: CWE-306 (Missing Authentication for Critical Functionality)

## Which versions are affected by CVE-2026-56346?

2 open source packages ship an affected version, including wwbn/avideo.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `wwbn/avideo` | Packagist | All versions to 25.0 | None |
| `wwbn/avideo` | Packagist | All versions to 25.0 | None |

## How do I fix CVE-2026-56346?

No fix has been published for CVE-2026-56346 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-56346 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56346 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-56346 and fix it if it is affected.

What it is: CVE-2026-56346 is a medium-severity authentication bypass vulnerability in AVideo, published on 20 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56346 exists.

Affected packages and fixed versions:
- wwbn/avideo (Packagist): affected all versions up to 25.0; no fix listed
- wwbn/avideo (Packagist): affected all versions up to 25.0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-56346/ (Markdown: https://insights.sbomify.com/CVE-2026-56346/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-56346
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-56346
- OSV: https://osv.dev/vulnerability/CVE-2026-56346

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-56346/
Summaries are generated and may contain mistakes; the official description above is the record.