CVE-2026-12549The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison.
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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The fix for CVE-2026-2443 was regressed by a subsequent rework commit that replaced specific overflow checks with a general signed comparison. When a client sends a Range request with a suffix length exceeding the content size, the resulting negative start value is not properly clamped, leading to malformed HTTP 206 responses and log flooding.
- CVSS
- 4.8 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L
- Weakness (CWE)
- CWE-805
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jul 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
redhat enterprise_linux redhat:enterprise_linux | 6.0; 7.0; 8.0; 9.0; 10.0 | NVD |
gnome libsoup gnome:libsoup | all versions | NVD |
References
- https://access.redhat.com/security/cve/CVE-2026-12549vendor-advisory, mitigation
- https://access.redhat.com/security/cve/cve-2026-0716vendor-advisory, mitigation
- https://bugzilla.redhat.com/show_bug.cgi?id=2489999issue-tracking, vendor-advisory
- https://gitlab.gnome.org/GNOME/libsoup/-/work_items/516exploit, issue-tracking, patch, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.