{"id":"AZL-113368","summary":"CVE-2026-104259 affecting package mod_security 2.9.7-8","details":"ModSecurity is an open source, cross platform web application firewall (WAF) engine for Apache, IIS and Nginx. Prior to 2.9.15 and 3.0.17, msre_fn_removeComments_execute in apache2/re_tfns.c and inplace() in src/actions/transformations/remove_comments.cc implement t:removeComments by copying the character immediately after a comment terminator without re-evaluating it. Adjacent comments can therefore leave a later comment in the transformed value, allowing inline-comment obfuscation to bypass rules that depend on comment stripping. When a comment terminator is the final content, the same copy reads one byte beyond the input buffer. This issue is fixed in versions 2.9.15 and 3.0.17.","modified":"2026-11-13T14:17:22.498718980Z","published":"2026-11-09T22:18:22Z","upstream":["CVE-2026-104259"],"references":[{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-104259"}],"affected":[{"package":{"name":"mod_security","ecosystem":"Azure Linux:3","purl":"pkg:rpm/azure-linux/mod_security"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.9.7-8"}]}],"database_specific":{"source":"https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-113368.json"}}],"schema_version":"1.9.2"}