Vulnocalypse
Back to feed
29impact

cross-proxy Digest auth state leak

curl · CVE-2026-7168
0 news outlets0 CERTs and agencies0 researchers

What is it?

Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.

Evidence

No coverage recorded yet.

Exploitation

  • Public proof of concept
  • Exploited in the wild
  • Listed as known exploited
CVSS
5.3
EPSS
0.5%
First seen
2 d ago
Status
corroborated

All curl vulnerabilities