# curl Patches HTTP/2 Upload Flaw After PoC Shows Client-Side Code Execution

The curl project released fixes for a vulnerability in its HTTP/2 upload handling after a proof-of-concept showed that a malicious server could trigger code execution on the connecting client. The flaw affects one of the most widely deployed command-line and library networking tools, putting countless applications and build pipelines at risk. Users and maintainers are urged to upgrade to the patched version.

**Importance:** 4/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/10/curl-patches-http2-upload-flaw-after.html) — Wed, 14 Oct 2026 17:43:36 +0530