CVE-2025-46420
Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c
02 Description
Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 0.59% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 48.1% of scored records. A rank, not a probability.
- NVD base score
- 6.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-06-30.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-04-24 12:58Z1 YR AGO
- Last updated
- 2026-07-25 01:08Z3 MO AGO
- Reserved
- 2025-04-24
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- Medium (CVSS 6.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-401Missing Release of Memory after Effective LifetimeVariant
- Data version
- 5.2
- Document digest
- 405f38d9e26de6da60639544e7bef628d96b7a00562f93e55f6ba0e907b1cf99
05 Affected products
06 References
- access.redhat.comRHSA-2025:4439https://access.redhat.com/errata/RHSA-2025:4439
- access.redhat.comRHSA-2025:4440https://access.redhat.com/errata/RHSA-2025:4440
- access.redhat.comRHSA-2025:4508https://access.redhat.com/errata/RHSA-2025:4508
- access.redhat.comRHSA-2025:4538https://access.redhat.com/errata/RHSA-2025:4538
- access.redhat.comRHSA-2025:4560https://access.redhat.com/errata/RHSA-2025:4560
- access.redhat.comRHSA-2025:4568https://access.redhat.com/errata/RHSA-2025:4568
- access.redhat.comRHSA-2025:4609https://access.redhat.com/errata/RHSA-2025:4609
- access.redhat.comRHSA-2025:4624https://access.redhat.com/errata/RHSA-2025:4624
- access.redhat.comRHSA-2025:7436https://access.redhat.com/errata/RHSA-2025:7436
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2025-46420
- bugzilla.redhat.comRHBZ#2361963https://bugzilla.redhat.com/show_bug.cgi?id=2361963
- gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/libsoup/-/issues/438
07 Fixed in
AlmaLinux 8
- libsoup Fixed in 2.62.3-8.el8_10
- libsoup-devel Fixed in 2.62.3-8.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- libsoup Fixed in 2.72.0-10.el9_6.1
- libsoup-devel Fixed in 2.72.0-10.el9_6.1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- libsoup Fixed in 2.62.3-8.el8_10
- libsoup-devel Fixed in 2.62.3-8.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- libsoup Fixed in 2.72.0-10.el9_6.1
- libsoup-devel Fixed in 2.72.0-10.el9_6.1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- libsoup2.4 No fix yet
- libsoup3 Fixed in 3.2.3-0+deb12u1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libsoup2.4 Fixed in 2.74.3-10.1
- libsoup3 Fixed in 3.6.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libsoup3 Fixed in 3.6.4-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- libsoup2.4 Fixed in 2.70.0-1ubuntu0.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- libsoup2.4 Fixed in 2.74.2-3ubuntu0.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- libsoup2.4 Fixed in 2.74.3-6ubuntu1.3
- libsoup3 Fixed in 3.4.4-5ubuntu0.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- libsoup2.4 Fixed in 2.52.2-1ubuntu0.3+esm1Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- libsoup2.4 Fixed in 2.62.1-1ubuntu0.4+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- libsoup3 Fixed in 3.0.7-0ubuntu1+esm3Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.