# AVideo has SSRF Protection Bypass via HTTP Redirect in Image Download Endpoints

Advisory record · `GHSA-f359-r3pv-2phf`

- **Identifiers:** `GHSA-f359-r3pv-2phf` · `CVE-2026-33766` · `PKSA-37q2-fmsd-htgf`
- **State:** Confirmed
- **Severity:** CVSS 5.3 Medium
- **Critical:** No
- **Weakness (CWE):** [CWE-918](https://cwe.mitre.org/data/definitions/918.html)
- **Tags:** [Server-side request forgery (SSRF)](https://agentprime.io/advisories/tag/ssrf.md)
- **Published:** 26 Mar 2026
- **Updated:** 8 Apr 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 26 Mar 2026, 18:10 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Affected packages

- `wwbn/avideo` (Packagist): affected `<=26.0`; no fixed version yet

## Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

> Packagist package wwbn/avideo, versions 26.0 and earlier, has an SSRF protection bypass. The URL check in the image download endpoints does not re-validate redirect targets, so an authenticated user with upload and edit permissions can use a public URL that redirects to an internal address, such as cloud metadata or internal services. No fixed version is listed; the source suggests disabling automatic redirect following or re-checking the final URL.

Written 3 Nov 2026.

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 5.3 Medium, CVSS 4.0: `CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N`, from CNA (GitHub_M)

- **CISA KEV:** Not listed.
- **EPSS:** 0.0025, the 16th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:25 UTC: First seen by agentprime
- 31 Oct 2026, 14:25 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-f359-r3pv-2phf)

## Sources

- [GitHub Advisory Database: GHSA-f359-r3pv-2phf](https://github.com/advisories/GHSA-f359-r3pv-2phf)
- [OSV: GHSA-f359-r3pv-2phf](https://osv.dev/vulnerability/GHSA-f359-r3pv-2phf)
- <https://github.com/WWBN/AVideo/security/advisories/GHSA-f359-r3pv-2phf>
- <https://nvd.nist.gov/vuln/detail/CVE-2026-33766>
- <https://github.com/WWBN/AVideo/commit/8b7e9dad359d5fac69e0cbbb370250e0b284bc12>
- <https://github.com/WWBN/AVideo>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-f359-r3pv-2phf>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

---

The web page: <https://agentprime.io/advisories/GHSA-f359-r3pv-2phf/>. Everything for agents: <https://agentprime.io/llms.txt>.