CVE-2026-12548
mediumpriority · track · 0EPSS 0.003 · 17 %ileEUUSEPSS · scored 2026-10-28
A heap out-of-bounds read flaw was found in libsoup. When parsing multipart HTTP messages, an integer type mismatch between the caller and soup_headers_parse() can cause the length parameter to be incorrectly truncated, leading to a heap buffer over-read. A remote attacker could use this flaw to crash an application using libsoup or potentially disclose heap memory contents.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.9–4.2
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (3)
Other names and identifiers for this entity.
sources
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references (9)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/CVE-2026-12548cnnvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2489996cnnvd
- https://gitlab.gnome.org/GNOME/libsoup/-/work_items/512cnnvd
- https://access.redhat.com/security/cve/CVE-2026-12548enisa_euvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2489996enisa_euvd
- https://gitlab.gnome.org/GNOME/libsoup/-/work_items/512enisa_euvd
- https://access.redhat.com/security/cve/CVE-2026-12548Vendor Advisorynvd
- https://bugzilla.redhat.com/show_bug.cgi?id=2489996ExploitIssue TrackingVendor Advisorynvd
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