CVE-2026-2443

Libsoup: out-of-bounds read in libsoup handle_partial_get() leading to heap information disclosure

CVE-2026-2443 is fixed in 2 products on 1 platform, first by SUSE-SU-2026:0657-1, released February 26, 2026. It is not reported as exploited. Patch Radar priority: Routine.

Routine
CVSS
5.3
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0049
42nd percentile

This update for libsoup fixes the following issues: - CVE-2025-32049: denial of Service attack to websocket server (bsc#1240751). - CVE-2026-2369: buffer overread due to integer underflow when handling zero-length resources (bsc#1258120). - CVE-2026-2443: out-of-bounds read when processing specially crafted HTTP Range headers can lead to heap information disclosure to remote attackers (bsc#1258170). - CVE-2026-2708: HTTP request smuggling via duplicate Content-Length headers (bsc#1258508).

Where it's fixed

ProductFixed inFixReleased
Linux
libsoup · opensuse-leap 15.6 3.4.4-150600.3.34.1 SUSE-SU-2026:0690-1 Feb 27, 2026
libsoup · opensuse-leap 16.0 3.6.6-160000.1.1 OPENSUSE-SU-2026:20384-1 Mar 18, 2026
libsoup · sles 15.6 3.4.4-150600.3.34.1 SUSE-SU-2026:0690-1 Feb 27, 2026
libsoup · sles 15.7 3.4.4-150600.3.34.1 SUSE-SU-2026:0690-1 Feb 27, 2026
libsoup · sles 16.0 3.6.6-160000.1.1 SUSE-SU-2026:20902-1 Mar 18, 2026
libsoup2 · opensuse-leap 15.6 2.74.3-150600.4.27.1 SUSE-SU-2026:0657-1 Feb 26, 2026
libsoup2 · opensuse-leap 16.0 2.74.3-160000.4.1 OPENSUSE-SU-2026:20354-1 Mar 13, 2026
libsoup2 · sles 15.6 2.74.3-150600.4.27.1 SUSE-SU-2026:0657-1 Feb 26, 2026
libsoup2 · sles 15.7 2.74.3-150600.4.27.1 SUSE-SU-2026:0657-1 Feb 26, 2026

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