--- id: CVE-2025-46420 title: A flaw was found in libsoup summary: >- 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. severity: medium cvss: 6.5 cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H' cwe: - CWE-401 published: '2025-04-24' updated: '2026-06-25' source: NVD sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2025-46420' references: - url: 'https://access.redhat.com/errata/RHSA-2025:4439' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4440' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4508' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4538' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4560' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4568' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4609' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:4624' label: secalert@redhat.com - url: 'https://access.redhat.com/errata/RHSA-2025:7436' label: secalert@redhat.com - url: 'https://access.redhat.com/security/cve/CVE-2025-46420' label: secalert@redhat.com - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=2361963' label: secalert@redhat.com - url: 'https://gitlab.gnome.org/GNOME/libsoup/-/issues/438' label: secalert@redhat.com - url: >- https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-46420.json - url: 'https://www.cve.org/CVERecord?id=CVE-2025-46420' - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-46420' tags: - nvd - csaf - vex - red-hat epss: 0.00594 epssPercentile: 0.48202 ingestedAt: '2026-06-29T13:24:34.199Z' vendor: Red Hat product: Red Hat Enterprise Linux AppStream E4S (v.9.0) affected: - enterprise_linux 6 - enterprise_linux 7 - enterprise_linux_appstream_v_8 - enterprise_linux_appstream_aus_v_8_2 - enterprise_linux_appstream_aus_v_8_4 - enterprise_linux_appstream_e4s_v_8_4 - enterprise_linux_appstream_tus_v_8_4 - enterprise_linux_appstream_aus_v_8_6 - enterprise_linux_appstream_e4s_v_8_6 - enterprise_linux_appstream_tus_v_8_6 - enterprise_linux_appstream_eus_v_8_8 - enterprise_linux_appstream_e4s_v_9_0 - enterprise_linux_appstream_eus_v_9_2 - enterprise_linux_appstream_eus_v_9_4 - enterprise_linux_appstream_v_9 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_2 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_e4s_v_8_4 - enterprise_linux_baseos_tus_v_8_4 - enterprise_linux_baseos_aus_v_8_6 - enterprise_linux_baseos_e4s_v_8_6 - enterprise_linux_baseos_tus_v_8_6 - enterprise_linux_baseos_eus_v_8_8 patched: - enterprise_linux_appstream_v_8 - enterprise_linux_appstream_aus_v_8_2 - enterprise_linux_appstream_aus_v_8_4 - enterprise_linux_appstream_e4s_v_8_4 - enterprise_linux_appstream_tus_v_8_4 - enterprise_linux_appstream_aus_v_8_6 - enterprise_linux_appstream_e4s_v_8_6 - enterprise_linux_appstream_tus_v_8_6 - enterprise_linux_appstream_eus_v_8_8 - enterprise_linux_appstream_e4s_v_9_0 - enterprise_linux_appstream_eus_v_9_2 - enterprise_linux_appstream_eus_v_9_4 - enterprise_linux_appstream_v_9 - enterprise_linux_baseos_v_8 - enterprise_linux_baseos_aus_v_8_2 - enterprise_linux_baseos_aus_v_8_4 - enterprise_linux_baseos_e4s_v_8_4 - enterprise_linux_baseos_tus_v_8_4 - enterprise_linux_baseos_aus_v_8_6 - enterprise_linux_baseos_e4s_v_8_6 - enterprise_linux_baseos_tus_v_8_6 - enterprise_linux_baseos_eus_v_8_8 --- ## Overview 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. ## Remediation Refer to the linked advisories for vendor-supplied fixes and affected version ranges. ## Vendor advisories - **RHSA-2025:4560** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8), Red Hat Enterprise Linux BaseOS (v. 8) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4560) - **RHSA-2025:4538** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v. 8.2), Red Hat Enterprise Linux BaseOS AUS (v. 8.2) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4538) - **RHSA-2025:4609** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream E4S (v.8.4), Red Hat Enterprise Linux AppStream TUS (v.8.4), Red Hat Enterprise Linux BaseOS AUS (v.8.4), Red Hat Enterprise Linux BaseOS E4S (v.8.4), Red Hat Enterprise Linux BaseOS TUS (v.8.4) · released 2025-05-07 · [advisory](https://access.redhat.com/errata/RHSA-2025:4609) - **RHSA-2025:4624** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream E4S (v.8.6), Red Hat Enterprise Linux AppStream TUS (v.8.6), Red Hat Enterprise Linux BaseOS AUS (v.8.6), Red Hat Enterprise Linux BaseOS E4S (v.8.6), Red Hat Enterprise Linux BaseOS TUS (v.8.6) · released 2025-05-07 · [advisory](https://access.redhat.com/errata/RHSA-2025:4624) - **RHSA-2025:4568** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.8.8), Red Hat Enterprise Linux BaseOS EUS (v.8.8) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4568) - **RHSA-2025:4439** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.0) · released 2025-05-05 · [advisory](https://access.redhat.com/errata/RHSA-2025:4439) - **RHSA-2025:4508** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.2) · released 2025-05-06 · [advisory](https://access.redhat.com/errata/RHSA-2025:4508) - **RHSA-2025:4440** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.4) · released 2025-05-05 · [advisory](https://access.redhat.com/errata/RHSA-2025:4440) - **RHSA-2025:7436** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2025-05-13 · [advisory](https://access.redhat.com/errata/RHSA-2025:7436) - **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7 · updated 2026-10-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-46420.json)