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.

The remote SUSE Linux SLED15 / SLED_SAP15 / SLES15 / SLES_SAP15 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4023-1 advisory.

    This update for libsoup fixes the following issue:

    - CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES12 / SLES_SAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:4105-1 advisory.

    This update for libsoup fixes the following issue:

    - CVE-2026-12548: out-of-bounds read in multipart body parser due to an integer truncation (bsc#1272196).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2026-12548)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
348431	SUSE SLED15 / SLES15 Security Update : libsoup (SUSE-SU-2026:4023-1)	Nessus	SuSE Local Security Checks	Local	medium
345832	SUSE SLES12: libsoup-2_4-1 / libsoup-2_4-1-32bit / libsoup-devel / libsoup-lang / etc (SUSE-SU-2026:4105-1)	Nessus	SuSE Local Security Checks	Local	medium
329551	Linux Distros Unpatched Vulnerability : CVE-2026-12548	Nessus	Misc.	Local	medium

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CVE-2026-12548

medium

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medium