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CVE-2026-0719

Libsoup: signed to unsigned conversion error leading to stack-based buffer overflow in libsoup ntlm authentication

HIGH 8.6

At a glance

Source
NVD
EPSS
EPSS 0.61 % · percentile 49 ()
State
PUBLISHED
Published
Updated
Assigner
redhat
NVD status
Deferred

Description

A flaw was identified in the NTLM authentication handling of the libsoup HTTP library, used by GNOME and other applications for network communication. When processing extremely long passwords, an internal size calculation can overflow due to improper use of signed integers. This results in incorrect memory allocation on the stack, followed by unsafe memory copying. As a result, applications using libsoup may crash unexpectedly, creating a denial-of-service risk.

Weaknesses (CWE)

  • CWE-121 — Stack-based Buffer Overflow

References

Scores

VersionScoreVectorScored by
CVSS 3.1HIGH 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hredhat
CVSS 3.1HIGH 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hredhat-SADP
CVSS 3.1HIGH 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:HNVD · secalert@redhat.com (Secondary)
CVSS 3.1HIGH 8.6CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:HNVD · 0b0ca135-0b70-47e7-9f44-1890c2a1c46c (Secondary)

European references

Affected products

ProductVersions
Red Hat · Red Hat Enterprise Linux 10unaffected 0:3.6.5-3.el10_1.9 < *
Red Hat · Red Hat Enterprise Linux 10.0 Extended Update Supportunaffected 0:3.6.5-3.el10_0.14 < *
Red Hat · Red Hat Enterprise Linux 7 Extended Lifecycle Supportunaffected 0:2.62.2-11.el7_9 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:8.10-7 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.62.3-13.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8unaffected 0:2.62.3-13.el8_10 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:2.62.3-1.el8_2.8 < *
Red Hat · Red Hat Enterprise Linux 8.2 Advanced Update Supportunaffected 0:8.10-7.el8_2.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_4.8 < *
Red Hat · Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Supportunaffected 0:8.10-7.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:2.62.3-2.el8_4.8 < *
Red Hat · Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-Onunaffected 0:8.10-7.el8_4.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:2.62.3-2.el8_6.8 < *
Red Hat · Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Supportunaffected 0:8.10-7.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:2.62.3-2.el8_6.8 < *
Red Hat · Red Hat Enterprise Linux 8.6 Telecommunications Update Serviceunaffected 0:8.10-7.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:2.62.3-2.el8_6.8 < *
Red Hat · Red Hat Enterprise Linux 8.6 Update Services for SAP Solutionsunaffected 0:8.10-7.el8_6.1 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:2.62.3-3.el8_8.8 < *
Red Hat · Red Hat Enterprise Linux 8.8 Telecommunications Update Serviceunaffected 0:8.10-7.el8_8.1 < *

Sources

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