Bug 2538443 (CVE-2026-57226) - CVE-2026-57226 Suricata: Suricata: Heap buffer overflow vulnerability leads to denial of service
Summary: CVE-2026-57226 Suricata: Suricata: Heap buffer overflow vulnerability leads t...
Keywords:
Status: NEW
Alias: CVE-2026-57226
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2539181
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-22 18:34 UTC by OSIDB Bzimport
Modified: 2026-09-23 08:33 UTC (History)
0 users

Fixed In Version:
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Description OSIDB Bzimport 2026-09-22 18:34:13 UTC
Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to 7.0.17 and 8.0.6, HTTP SWF decompression with the non-default swf-decompression feature and an unsafe decompress-depth can use the configured depth when allocating in src/util-file-decompression.c instead of limiting the allocation to the Flash file's actual data requirement. A crafted SWF response can therefore trigger an integer-related heap buffer overflow and crash Suricata; the default disabled feature and default depth are not affected. This issue is fixed in versions 8.0.6 and 7.0.17.


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