{"id":"CVE-2026-44631","summary":"Apache HTTP Server: Heap Underflow in `ap_regname` via Signed Char Overflow","details":"Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration.\n\nThis issue affects Apache HTTP Server: from 2.4.0 through 2.4.67.\n\nUsers are recommended to upgrade to version 2.4.68, which fixes the issue.","aliases":["BIT-apache-2026-44631"],"modified":"2026-10-29T02:48:32.296055169Z","published":"2026-06-08T15:19:23.570Z","related":["ALSA-2026:34109","ALSA-2026:41906","ALSA-2026:42828","SUSE-SU-2026:22564-1","SUSE-SU-2026:2686-1","SUSE-SU-2026:2717-1","SUSE-SU-2026:2735-1","SUSE-SU-2026:2759-1","openSUSE-SU-2026:21235-1"],"database_specific":{"cna_assigner":"apache","cwe_ids":["CWE-124"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44631.json","unresolved_ranges":[{"extracted_events":[{"range":[{"introduced":"2.4.0"},{"last_affected":"2.4.67"}],"source":"AFFECTED_FIELD","strategy":"StandardRange"}]}]},"references":[{"type":"WEB","url":"http://www.openwall.com/lists/oss-security/2026/06/08/14"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/44xxx/CVE-2026-44631.json"},{"type":"ADVISORY","url":"https://httpd.apache.org/security/vulnerabilities_24.html"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-44631"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/apache/httpd","events":[{"introduced":"da5873e80d6eee7a0838793bf68f1d0254745fbb"},{"fixed":"736bb657405eb73fd68a64772c3a908807bdb887"}],"database_specific":{"extracted_events":[{"cpe":"cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*","range":[{"introduced":"2.4.0"},{"fixed":"2.4.68"}],"source":"CPE_RANGE"}]}}],"database_specific":{"source":"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-44631.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}