Public vulnerability disclosure
CVE-2025-46420
Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c
publishedCWE-401
A flaw was found in libsoup. It is vulnerable to memory leaks in the soup_header_parse_quality_list() function when parsing a quality list that contains elements with all zeroes.
Technical severity6.5 mediumCVSS 3.1 · CNA: redhat
Published2025-04-24Source updated 2026-11-05
Collected2026-11-052 attributed sources
Fixes and workarounds
Workaround
Currently, no mitigation is available for this vulnerability.
Source: CNA: redhatAffected products and versions
| Product | Versions | Authority |
|---|---|---|
libsoup
https://gitlab.gnome.org/GNOME/libsoup |
≥ 0; < 3.6.3 (affected, semver)
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 8 Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-8.el8_10; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-1.el8_2.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_4.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.4 Telecommunications Update Service Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_4.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_4.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_6.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.6 Telecommunications Update Service Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_6.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-2.el8_6.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 8.8 Extended Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.62.3-3.el8_8.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9 Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.72.0-10.el9_6.1; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.72.0-8.el9_0.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9.2 Extended Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.72.0-8.el9_2.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 9.4 Extended Update Support Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
≥ 0:2.72.0-8.el9_4.4; < * (unaffected, rpm)
Other versions: affected |
CNA: redhat |
| Red Hat Enterprise Linux 10 Red Hat libsoup3
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unaffected |
CNA: redhat |
| Red Hat Enterprise Linux 6 Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unknown |
CNA: redhat |
| Red Hat Enterprise Linux 7 Red Hat libsoup
https://access.redhat.com/downloads/content/package-browser/ |
Range not reported
Other versions: unknown |
CNA: redhat |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 6.5 medium |
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H | CNA: redhat |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://access.redhat.com/errata/RHSA-2025:4439CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4440CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4508CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4538CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4560CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4568CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4609CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:4624CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/errata/RHSA-2025:7436CNA: redhat · vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2025-46420CNA: redhat · vdb-entry, x_refsource_REDHAT
- https://bugzilla.redhat.com/show_bug.cgi?id=2361963CNA: redhat · issue-tracking, x_refsource_REDHAT
- https://gitlab.gnome.org/GNOME/libsoup/-/issues/438CNA: redhat
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