CVE-2026-8927
When reusing a libcurl handle for sequential transfers driven by environment-variable proxy configuration, libcurl fails to clear the proxy authentication state between requests. Specifically, if the initial transfer authenticates against `proxyA` using Digest auth, a subsequent transfer routed through `proxyB` erroneously leaks the `Proxy-Authorization:` header intended solely for `proxyA`.
- Haxx Curl
- < 8.21.0
- CVSS 3.1
- 9.1 CRITICAL
- EPSS
- 0.4% (36th percentile)
- Weakness
- CWE-294
- NVD status
- Analyzed
- Published
- 2026-07-03
CVE-2026-8927 at NVD
No indexed exploits for CVE-2026-8927 yet
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No exploit for CVE-2026-8927 has been indexed yet. Our index is built from live traffic and upstream syncs, so this page can only say what it knows — not that no exploit exists.