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CVE-2026-1761— Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

libsoup是GNOME项目的一款GNOME的HTTP客户端/服务器库。 libsoup存在安全漏洞，该漏洞源于解析多部分HTTP响应时长度计算错误，可能导致栈缓冲区溢出、内存损坏、应用程序崩溃或执行任意代码。

CVSS 8.6 · High EPSS 1.07% · P64

Affected Version Matrix 32

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 0:3.6.5-3.el10_1.9< * unaffected
0:3.6.5-3.el10_1.10< * unaffected
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:3.6.5-3.el10_0.14< * unaffected
Red Hat Red Hat Enterprise Linux 6 any unknown
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.62.2-11.el7_9< * unaffected
Red Hat Red Hat Enterprise Linux 8 0:8.10-7< * unaffected
0:2.62.3-13.el8_10< * unaffected
0:2.62.3-13.el8_10< * unaffected
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.62.3-1.el8_2.8< * unaffected
0:8.10-7.el8_2.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.62.3-2.el8_4.8< * unaffected
0:8.10-7.el8_4.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.62.3-2.el8_4.8< * unaffected
0:8.10-7.el8_4.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.62.3-2.el8_6.8< * unaffected
0:8.10-7.el8_6.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.62.3-2.el8_6.8< * unaffected
0:8.10-7.el8_6.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.62.3-2.el8_6.8< * unaffected
0:8.10-7.el8_6.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:2.62.3-3.el8_8.8< * unaffected
0:8.10-7.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.62.3-3.el8_8.8< * unaffected
0:8.10-7.el8_8.1< * unaffected
Red Hat Red Hat Enterprise Linux 9 0:2.72.0-12.el9_7.5< * unaffected
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.72.0-8.el9_0.9< * unaffected
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.72.0-8.el9_2.10< * unaffected
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:2.72.0-8.el9_4.9< * unaffected
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:2.72.0-10.el9_6.6< * unaffected
Red Hat Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 sha256:619c10386e0224e5228876a434c5b8d78d251bc383e2a9491503d6ceddd33c96< * unaffected
sha256:25de67b5c2c60597173d977b2a09ecd14a9b2d60c4fd24ac0c8bf3c1ac6c000e< * unaffected
sha256:f3428de9e2ede29629694ab02ff8ca25543f3bc8a7300d1de95c00724e31c4b5< * unaffected
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I. Basic Information for CVE-2026-1761

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
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Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Libsoup: stack-based buffer overflow in libsoup multipart response parsingmultipart http response
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
栈缓冲区溢出
Source: CVE Program / CVE List V5
Vulnerability Title
libsoup 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
libsoup是GNOME项目的一款GNOME的HTTP客户端/服务器库。 libsoup存在安全漏洞，该漏洞源于解析多部分HTTP响应时长度计算错误，可能导致栈缓冲区溢出、内存损坏、应用程序崩溃或执行任意代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 0:3.6.5-3.el10_1.9 ~ * cpe:/o:redhat:enterprise_linux:10.1
Red Hat Red Hat Enterprise Linux 10 0:3.6.5-3.el10_1.10 ~ * cpe:/o:redhat:enterprise_linux:10.1
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support 0:3.6.5-3.el10_0.14 ~ * cpe:/o:redhat:enterprise_linux_eus:10.0
Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support 0:2.62.2-11.el7_9 ~ * cpe:/o:redhat:rhel_els:7
Red Hat Red Hat Enterprise Linux 8 0:8.10-7 ~ * cpe:/a:redhat:enterprise_linux:8::appstream
Red Hat Red Hat Enterprise Linux 8 0:2.62.3-13.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8 0:2.62.3-13.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:2.62.3-1.el8_2.8 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support 0:8.10-7.el8_2.1 ~ * cpe:/a:redhat:rhel_aus:8.2::appstream
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:2.62.3-2.el8_4.8 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:8.10-7.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:2.62.3-2.el8_4.8 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:8.10-7.el8_4.1 ~ * cpe:/a:redhat:rhel_aus:8.4::appstream
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:2.62.3-2.el8_6.8 ~ * cpe:/o:redhat:rhel_e4s:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:8.10-7.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:2.62.3-2.el8_6.8 ~ * cpe:/o:redhat:rhel_e4s:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service 0:8.10-7.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:2.62.3-2.el8_6.8 ~ * cpe:/o:redhat:rhel_e4s:8.6::baseos
Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:8.10-7.el8_6.1 ~ * cpe:/a:redhat:rhel_aus:8.6::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:2.62.3-3.el8_8.8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service 0:8.10-7.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:2.62.3-3.el8_8.8 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:8.10-7.el8_8.1 ~ * cpe:/a:redhat:rhel_e4s:8.8::appstream
Red Hat Red Hat Enterprise Linux 9 0:2.72.0-12.el9_7.5 ~ * cpe:/a:redhat:enterprise_linux:9::appstream
Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:2.72.0-8.el9_0.9 ~ * cpe:/a:redhat:rhel_e4s:9.0::appstream
Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:2.72.0-8.el9_2.10 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support 0:2.72.0-8.el9_4.9 ~ * cpe:/a:redhat:rhel_eus:9.4::appstream
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support 0:2.72.0-10.el9_6.6 ~ * cpe:/a:redhat:rhel_eus:9.6::appstream
Red Hat Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 sha256:619c10386e0224e5228876a434c5b8d78d251bc383e2a9491503d6ceddd33c96 ~ * cpe:/a:redhat:openshift_devspaces:3.26::el9
Red Hat Red Hat OpenShift Dev Spaces (RHOSDS) 3.26 sha256:25de67b5c2c60597173d977b2a09ecd14a9b2d60c4fd24ac0c8bf3c1ac6c000e ~ * cpe:/a:redhat:openshift_devspaces:3.26::el9

II. Public POCs for CVE-2026-1761

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III. Intelligence Information for CVE-2026-1761

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Vendor Advisories for CVE-2026-1761 (12)

Other References for CVE-2026-1761 (1)

Same Patch Batch · Red Hat · 2026-02-02 · 6 CVEs total

CVE-2026-1531 8.1 HIGH Foreman-kubevirt: foreman_kubevirt: man-in-the-middle due to insecure default ssl verifica
CVE-2026-1530 8.1 HIGH Fog-kubevirt: fog-kubevirt: man-in-the-middle vulnerability due to disabled certificate va
CVE-2026-1757 6.2 MEDIUM Libxml2: memory leak leading to local denial of service in xmllint interactive shell
CVE-2026-1760 5.3 MEDIUM Libsoup: soupserver: denial of service via http request smuggling
CVE-2025-13881 2.7 LOW Org.keycloak.services.resources.admin: keycloak: limited administrator can retrieve sensit

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-121

V. Comments for CVE-2026-1761

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