Libsoup: memory leak on soup_header_parse_quality_list() via soup-headers.c (libsoup)

CVE-2025-46420

MEDIUM 6.5

At a glance

Source: NVD
EPSS: EPSS 0.59 % · percentile 48 (2026-10-29)
State: PUBLISHED
Published: 2025-04-24 12:58 UTC
Updated: 2026-07-25 01:08 UTC
Assigner: redhat
NVD status: Deferred

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Description

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.

Weaknesses (CWE)

CWE-401 — Missing Release of Memory after Effective Lifetime

References

Scores

Version	Score	Vector	Scored by
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	redhat
CVSS 3.1	MEDIUM 6.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	NVD · secalert@redhat.com (Secondary)

European references

ENISA EUVD · EUVD-2025-12110
GCVE · GCVE-0-2025-46420

Affected products

Product	Versions
libsoup	affected 0 < 3.6.3
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:2.62.3-8.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8	unaffected 0:2.62.3-8.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Support	unaffected 0:2.62.3-1.el8_2.4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support	unaffected 0:2.62.3-2.el8_4.4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Telecommunications Update Service	unaffected 0:2.62.3-2.el8_4.4 < *
Red Hat · Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions	unaffected 0:2.62.3-2.el8_4.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support	unaffected 0:2.62.3-2.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Service	unaffected 0:2.62.3-2.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions	unaffected 0:2.62.3-2.el8_6.4 < *
Red Hat · Red Hat Enterprise Linux 8.8 Extended Update Support	unaffected 0:2.62.3-3.el8_8.4 < *
Red Hat · Red Hat Enterprise Linux 9	unaffected 0:2.72.0-10.el9_6.1 < *
Red Hat · Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions	unaffected 0:2.72.0-8.el9_0.4 < *
Red Hat · Red Hat Enterprise Linux 9.2 Extended Update Support	unaffected 0:2.72.0-8.el9_2.4 < *
Red Hat · Red Hat Enterprise Linux 9.4 Extended Update Support	unaffected 0:2.72.0-8.el9_4.4 < *
Red Hat · Red Hat Enterprise Linux 10
Red Hat · Red Hat Enterprise Linux 6
Red Hat · Red Hat Enterprise Linux 7

Sources

Source	Licence
CVE List (CVEProject cvelistV5)	CVE Program Terms of Use
EPSS (FIRST.org)	FIRST — attribution requested
ENISA EUVD	ENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feeds	Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD