Authentication Bypass Affecting curl-minimal package, versions <0:7.76.1-40.el9_8.7


Severity

Recommended
high

Based on Oracle Linux security rating.

Threat Intelligence

EPSS
0.5% (41st percentile)

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  • Snyk IDSNYK-ORACLE9-CURLMINIMAL-20046803
  • published22 Sept 2026
  • disclosed3 Jul 2026

Introduced: 3 Jul 2026

CVE-2026-8927  (opens in a new tab)
CWE-294  (opens in a new tab)

How to fix?

Upgrade Oracle:9 curl-minimal to version 0:7.76.1-40.el9_8.7 or higher.
This issue was patched in ELSA-2026-69126.

NVD Description

Note: Versions mentioned in the description apply only to the upstream curl-minimal package and not the curl-minimal package as distributed by Oracle. See How to fix? for Oracle:9 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1