Riskcovery

CVE-2026-0719

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

State
Published
Severity
8.6 High
Published
Jan 8, 2026
Updated
Jul 15, 2026
Reserved
Jan 8, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
3.18.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hredhat
3.18.6 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:Hredhat-SADP

Weaknesses

  • CWE-121 Stack-based Buffer Overflow

Affected Products

ProductVersions
Red Hat Enterprise Linux 10Red Hat
  • 0:3.6.5-3.el10_1.9 and laterNot affected
Red Hat Enterprise Linux 10.0 Extended Update SupportRed Hat
  • 0:3.6.5-3.el10_0.14 and laterNot affected
Red Hat Enterprise Linux 7 Extended Lifecycle SupportRed Hat
  • 0:2.62.2-11.el7_9 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:8.10-7 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:2.62.3-13.el8_10 and laterNot affected
Red Hat Enterprise Linux 8Red Hat
  • 0:2.62.3-13.el8_10 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat
  • 0:2.62.3-1.el8_2.8 and laterNot affected
Red Hat Enterprise Linux 8.2 Advanced Update SupportRed Hat
  • 0:8.10-7.el8_2.1 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:2.62.3-2.el8_4.8 and laterNot affected
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRed Hat
  • 0:8.10-7.el8_4.1 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat
  • 0:2.62.3-2.el8_4.8 and laterNot affected
Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnRed Hat
  • 0:8.10-7.el8_4.1 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:2.62.3-2.el8_6.8 and laterNot affected
Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportRed Hat
  • 0:8.10-7.el8_6.1 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat
  • 0:2.62.3-2.el8_6.8 and laterNot affected
Red Hat Enterprise Linux 8.6 Telecommunications Update ServiceRed Hat
  • 0:8.10-7.el8_6.1 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat
  • 0:2.62.3-2.el8_6.8 and laterNot affected
Red Hat Enterprise Linux 8.6 Update Services for SAP SolutionsRed Hat
  • 0:8.10-7.el8_6.1 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:2.62.3-3.el8_8.8 and laterNot affected
Red Hat Enterprise Linux 8.8 Telecommunications Update ServiceRed Hat
  • 0:8.10-7.el8_8.1 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:2.62.3-3.el8_8.8 and laterNot affected
Red Hat Enterprise Linux 8.8 Update Services for SAP SolutionsRed Hat
  • 0:8.10-7.el8_8.1 and laterNot affected
Red Hat Enterprise Linux 9Red Hat
  • 0:2.72.0-12.el9_7.5 and laterNot affected
Red Hat Enterprise Linux 9.0 Update Services for SAP SolutionsRed Hat
  • 0:2.72.0-8.el9_0.9 and laterNot affected
Red Hat Enterprise Linux 9.2 Update Services for SAP SolutionsRed Hat
  • 0:2.72.0-8.el9_2.10 and laterNot affected
Red Hat Enterprise Linux 9.4 Extended Update SupportRed Hat
  • 0:2.72.0-8.el9_4.9 and laterNot affected
Red Hat Enterprise Linux 9.6 Extended Update SupportRed Hat
  • 0:2.72.0-10.el9_6.6 and laterNot affected
Red Hat OpenShift Dev Spaces (RHOSDS) 3.26Red Hat
  • sha256:619c10386e0224e5228876a434c5b8d78d251bc383e2a9491503d6ceddd33c96 and laterNot affected
Red Hat OpenShift Dev Spaces (RHOSDS) 3.26Red Hat
  • sha256:48d31aa446fe1033ad770ed74442053bcee5102035a9c618fb81cde1743a9692 and laterNot affected
Red Hat OpenShift Dev Spaces (RHOSDS) 3.26Red Hat
  • sha256:bb9f0ee4fa785a4c3d4a3f6f5e177f4a41350ccef40bc53bfeedee2d52061472 and laterNot affected
Red Hat Enterprise Linux 6Red Hat

    References

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