AUGUST 23, 2026
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Case File

CVE-2026-8927

CRITICAL · CVSS 9.1 EPSS 0.44%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-07-03 · Last synced 2026-08-04

CyberRota Analysis

This is a critical severity vulnerability with a CVSS score of 9.1. See the original NVD description below for full technical details.

CVE
CVE-2026-8927
Severity
CRITICAL
CVSS
9.1
EPSS
0.44%

Original NVD Description

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`.

Related CVEs

Other vulnerabilities affecting the same vendor(s)