Information Exposure Affecting libsoup3 package, versions *


Severity

Recommended
0.0
low
0
10

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Threat Intelligence

EPSS
0.23% (14th percentile)

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  • Snyk IDSNYK-DEBIANUNSTABLE-LIBSOUP3-18320123
  • published27 Jul 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

CVE-2026-12547  (opens in a new tab)
CWE-201  (opens in a new tab)

How to fix?

There is no fixed version for Debian:unstable libsoup3.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup3 package and not the libsoup3 package as distributed by Debian. See How to fix? for Debian:unstable relevant fixed versions and status.

SoupAuthManager caches proxy authentication credentials without scoping them to the proxy authority (host:port). When the proxy configuration changes (e.g., via system settings or WPAD), cached Proxy-Authorization headers from the previous proxy are sent to the new proxy, leaking credentials.

CVSS Base Scores

version 3.1