Description
A flaw was found in libsoup. The libsoup append_param_quoted() function may contain an overflow bug resulting in a buffer under-read.
References10
- access.redhat.com/errata/RHSA-2025:4440
- access.redhat.com/errata/RHSA-2025:4508
- access.redhat.com/errata/RHSA-2025:4560
- access.redhat.com/errata/RHSA-2025:4568
- access.redhat.com/errata/RHSA-2025:7436
- access.redhat.com/errata/RHSA-2025:8292
- access.redhat.com/security/cve/CVE-2025-32050
- bugzilla.redhat.com/show_bug.cgi?id=2357067
- gitlab.gnome.org/GNOME/libsoup/-/issues/424
- lists.debian.org/debian-lts-announce/2025/04/msg00036.html
Metrics
- CVSS 3.1
-
5.9
MEDIUM
Score source: CNA
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 56 · as of 7 November 2026
- CWE
- CWE-127
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.