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9.1Kritisch

CVE-2026-8927env-set cross-proxy Digest auth state leak

curl curl Veröffentlicht: (vor 4 Monaten)

Beschreibung

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`.

Schwachstellentyp (CWE): CWE-294

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

HerstellerProduktVersionen
curl curl 7.12.0 – < 8.14.2, 8.15.0 – < 8.16.1, 8.17.0 – < 8.20.1
haxx curl 7.12.0 – < 8.21.0

Referenzen und Patches

CPE-Treffer (NVD) (1)
  • cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:* ≥ 7.12.0 < 8.21.0

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