CVE-2026-6324 (GCVE-0-2026-6324)
Vulnerability from cvelistv5 – Published: 2026-05-29 05:24 – Updated: 2026-11-05 21:51
VLAI
EPSS
VEX
Title
Libsoup: libsoup: http request smuggling via unsigned to signed conversion error
Summary
A flaw was found in libsoup. A remote attacker could exploit an unsigned to signed conversion error in the `soup_body_input_stream_read_chunked()` function by sending a malicious HTTP request. This vulnerability occurs when libsoup operates behind a non-libsoup proxy server or as a proxy in front of a non-libsoup backend server. Successful exploitation can allow an attacker to bypass security controls, poison web caches, or gain unauthorized access.
Severity
4.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-29 14:00 UTC
CWE
- CWE-444 - Inconsistent Interpretation of HTTP Requests
Assigner
redhat
CNA
References
5 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-6324 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2458479 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/libsoup/-/commit/9… | |
| https://gitlab.gnome.org/GNOME/libsoup/-/issues/508 | |
| https://gitlab.gnome.org/GNOME/libsoup/-/work_items/508 | exploit |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/a:redhat:enterprise_linux:10
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/a:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/a:redhat:enterprise_linux:9
|
Date Public
2026-01-27 00:00
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Nomenclature
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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