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01 Record

CVE-2026-1761

Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

HighPUBLISHEDCNA: redhat
CNA base score8.6 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
View raw JSON

02 Description

Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

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.
  • AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
  • Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
1.07% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 64.8% of scored records. A rank, not a probability.
NVD base score
8.6 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
NVD analysis status
Deferred. NVD last modified this record on 2026-07-15.
Red Hat severity
Important. 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
2026-02-02 14:01Z8 MO AGO
Last updated
2026-07-15 01:21Z3 MO AGO
Reserved
2026-02-02
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 8.6)
CNA CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Weaknesses
  • CWE-121Stack-based Buffer OverflowVariant
Data version
5.2
Document digest
1a0be0cd1cd819fcf42a0887d4d8453c4608666a97245b147bfab71fe163a68d

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat Enterprise Linux 10Not specified—
Red HatRed Hat Enterprise Linux 10.0 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle SupportNot specified—
Red HatRed Hat Enterprise Linux 8Not specified—
Red HatRed Hat Enterprise Linux 8.2 Advanced Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnNot specified—
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update ServiceNot specified—
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceNot specified—
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9Not specified—
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9.4 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 9.6 Extended Update SupportNot specified—
Red HatRed Hat OpenShift Dev Spaces (RHOSDS) 3.26Not specified—
Red HatRed Hat Enterprise Linux 6Not specified—

06 References

07 Fixed in

AlmaLinux 8

  • libsoup
    Fixed in 2.62.3-13.el8_10
  • libsoup-devel
    Fixed in 2.62.3-13.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 2.72.0-12.el9_7.5
  • libsoup-devel
    Fixed in 2.72.0-12.el9_7.5

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • libsoup3-doc
    Fixed

    A version is affected if any line below covers it.

    • Affected before 3.6.5-3.el10_1.10
    • Affected before 3.6.5-3.el10_1.9

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 2.62.3-13.el8_10
  • libsoup-devel
    Fixed in 2.62.3-13.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 2.72.0-12.el9_7.5
  • libsoup-devel
    Fixed in 2.72.0-12.el9_7.5

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.

CloudLinux 10

  • libsoup3-doc
    Fixed

    A version is affected if any line below covers it.

    • Affected before 3.6.5-3.el10_1.10
    • Affected before 3.6.5-3.el10_1.9

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 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
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libsoup2.4
    No fix yet
  • libsoup3
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libsoup3
    Fixed in 3.6.5-8

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • libsoup2.4
    No fix yet

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
    No fix yet
  • libsoup3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • libsoup2.4
    No fix yet
  • libsoup3
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • libsoup2.4
    No fix yet

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
    No fix yet

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
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 20.04 LTS

  • libsoup2.4
    No fix yet

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
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 26.04 LTS

  • libsoup2.4
    No fix yet

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.