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Vulnerability record · CVE-2026-1761 · published 2 February 2026

CVE-2026-1761: Stack-based buffer overflow vulnerability

A flaw was found in libsoup. This stack-based buffer overflow vulnerability occurs during the parsing of multipart HTTP responses due to an incorrect length calculation. A remote attacker can exploit this by sending a specially crafted multipart HTTP response, which can lead to memory corruption. This issue may result in application crashes or arbitrary code execution in applications that process untrusted server responses, and it does not require authentication or user interaction.

8.6 CVSS 3.1 High EPSS 1.0% · top 38.5% CWE-121 · Stack-based buffer overflow Deferred
8.6CVSS 3.1 base score
1.0%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
46References
15 Jul 2026Last modified by NVD

Description

A flaw was found in libsoup. This stack-based buffer overflow vulnerability occurs during the parsing of multipart HTTP responses due to an incorrect length calculation. A remote attacker can exploit this by sending a specially crafted multipart HTTP response, which can lead to memory corruption. This issue may result in application crashes or arbitrary code execution in applications that process untrusted server responses, and it does not require authentication or user interaction.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

References

LinkTags
https://access.redhat.com/errata/RHSA-2026:1948
https://access.redhat.com/errata/RHSA-2026:2005
https://access.redhat.com/errata/RHSA-2026:2006
https://access.redhat.com/errata/RHSA-2026:2007
https://access.redhat.com/errata/RHSA-2026:2008
https://access.redhat.com/errata/RHSA-2026:2049
https://access.redhat.com/errata/RHSA-2026:2182
https://access.redhat.com/errata/RHSA-2026:2214
https://access.redhat.com/errata/RHSA-2026:2215
https://access.redhat.com/errata/RHSA-2026:2216
https://access.redhat.com/errata/RHSA-2026:2396
https://access.redhat.com/errata/RHSA-2026:2402
https://access.redhat.com/errata/RHSA-2026:2410
https://access.redhat.com/errata/RHSA-2026:2512
https://access.redhat.com/errata/RHSA-2026:2513
https://access.redhat.com/errata/RHSA-2026:2514
https://access.redhat.com/errata/RHSA-2026:2528
https://access.redhat.com/errata/RHSA-2026:2529
https://access.redhat.com/errata/RHSA-2026:2628
https://access.redhat.com/errata/RHSA-2026:2844
https://access.redhat.com/security/cve/CVE-2026-1761
https://bugzilla.redhat.com/show_bug.cgi?id=2435961
https://gitlab.gnome.org/GNOME/libsoup/-/issues/493
https://access.redhat.com/errata/RHSA-2026:1948
https://access.redhat.com/errata/RHSA-2026:2005
https://access.redhat.com/errata/RHSA-2026:2006
https://access.redhat.com/errata/RHSA-2026:2007
https://access.redhat.com/errata/RHSA-2026:2008
https://access.redhat.com/errata/RHSA-2026:2049
https://access.redhat.com/errata/RHSA-2026:2182
https://access.redhat.com/errata/RHSA-2026:2214
https://access.redhat.com/errata/RHSA-2026:2215
https://access.redhat.com/errata/RHSA-2026:2216
https://access.redhat.com/errata/RHSA-2026:2396
https://access.redhat.com/errata/RHSA-2026:2402
https://access.redhat.com/errata/RHSA-2026:2410
https://access.redhat.com/errata/RHSA-2026:2512
https://access.redhat.com/errata/RHSA-2026:2513
https://access.redhat.com/errata/RHSA-2026:2514
https://access.redhat.com/errata/RHSA-2026:2528

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Source: NIST National Vulnerability Database (record CVE-2026-1761), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.