CVE-2026-57226 PUBLISHED

Suricata swf: heap buffer overflow in SWF decompression depth handling

Assigner: GitHub_M
Reserved: 24.06.2026 Published: 18.09.2026 Updated: 18.09.2026

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.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
CVSS Score: 3.7

Product Status

Vendor OISF
Product suricata
Versions
  • Version >= 8.0.0, < 8.0.6 is affected
  • Version < 7.0.17 is affected

References

Problem Types

  • CWE-122: Heap-based Buffer Overflow CWE
  • CWE-190: Integer Overflow or Wraparound CWE