Information Exposure Affecting libsoup-debuginfo package, versions <0:2.56.0-6.amzn2.0.9


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.23% (13th percentile)

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  • Snyk IDSNYK-AMZN2-LIBSOUPDEBUGINFO-20847614
  • published13 Oct 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?

Upgrade Amazon-Linux:2 libsoup-debuginfo to version 0:2.56.0-6.amzn2.0.9 or higher.
This issue was patched in ALAS2-2026-3970.

NVD Description

Note: Versions mentioned in the description apply only to the upstream libsoup-debuginfo package and not the libsoup-debuginfo package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 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