Hi,

The following vulnerability was published for cpp-httplib.

CVE-2026-77358[0]:
| cpp-httplib is a C++ header-only HTTP/HTTPS library. In versions
| 0.33.0 through 0.50.0, the TLS-enabled WebSocket client frees the
| TLS session before closing the WebSocket that still uses it,
| producing a use-after-free. In WebSocketClient::shutdown_and_close
| the SSL object is freed and the pointer cleared, but the subsequent
| WebSocket close still sends a close frame through the SSL socket
| stream, which holds a raw copy of the now-dangling session pointer
| and reads from and writes to the freed memory. The same freed-then-
| used ordering is reachable through the client's destructor and its
| connect path, so ordinary teardown of a secure WebSocket connection
| triggers the defect. This issue is fixed in version 0.50.1.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-77358
https://www.cve.org/CVERecord?id=CVE-2026-77358
[1] https://github.com/yhirose/cpp-httplib/security/advisories/GHSA-w7p7-f35j-mw7q
[2] https://github.com/yhirose/cpp-httplib/commit/2f986fd5e56e7c5f686d965174516360930f371d

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore