CVE-2025-53538

{"cve": {"data_type": "CVE", "references": {"reference_data": [{"url": "https://github.com/OISF/suricata/commit/1d6d331752e933c46aca0ae7a9679b27462246e3", "name": "https://github.com/OISF/suricata/commit/1d6d331752e933c46aca0ae7a9679b27462246e3", "tags": [], "refsource": ""}, {"url": "https://github.com/OISF/suricata/commit/7fa88ea9e7d05e07a7864050cfd836b576669720", "name": "https://github.com/OISF/suricata/commit/7fa88ea9e7d05e07a7864050cfd836b576669720", "tags": [], "refsource": ""}, {"url": "https://github.com/OISF/suricata/security/advisories/GHSA-qrr7-crgj-cmh3", "name": "https://github.com/OISF/suricata/security/advisories/GHSA-qrr7-crgj-cmh3", "tags": [], "refsource": ""}]}, "data_format": "MITRE", "description": {"description_data": [{"lang": "en", "value": "Suricata is a network IDS, IPS and NSM engine developed by the OISF (Open Information Security Foundation) and the Suricata community. In versions 7.0.10 and below and 8.0.0-beta1 through 8.0.0-rc1, mishandling of data on HTTP2 stream 0 can lead to uncontrolled memory usage, leading to loss of visibility. Workarounds include disabling the HTTP/2 parser, and using a signature like drop http2 any any -> any any (frame:http2.hdr; byte_test:1,=,0,3; byte_test:4,=,0,5; sid: 1;) where the first byte test tests the HTTP2 frame type DATA and the second tests the stream id 0. This is fixed in versions 7.0.11 and 8.0.0."}]}, "problemtype": {"problemtype_data": [{"description": [{"lang": "en", "value": "CWE-400"}, {"lang": "en", "value": "CWE-770"}]}]}, "data_version": "4.0", "CVE_data_meta": {"ID": "CVE-2025-53538", "ASSIGNER": "security-advisories@github.com"}}, "impact": {}, "publishedDate": "2025-07-22T22:15Z", "configurations": {"nodes": [], "CVE_data_version": "4.0"}, "lastModifiedDate": "2025-07-22T22:15Z"}