High severity7.5NVD Advisory· Published Jun 8, 2026· Updated Jun 9, 2026
CVE-2026-34355
CVE-2026-34355
Description
A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted backend. Users are recommended to upgrade to version 2.4.68, which fixes this issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
15cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*range: >=2.4.0,<2.4.68
- (no CPE)range: <=2.4.67
- Range: <=2.4.67
- osv-coords12 versionspkg:bitnami/apachepkg:rpm/almalinux/httpdpkg:rpm/almalinux/httpd-corepkg:rpm/almalinux/httpd-develpkg:rpm/almalinux/httpd-filesystempkg:rpm/almalinux/httpd-manualpkg:rpm/almalinux/httpd-toolspkg:rpm/almalinux/mod_ldappkg:rpm/almalinux/mod_luapkg:rpm/almalinux/mod_proxy_htmlpkg:rpm/almalinux/mod_sessionpkg:rpm/almalinux/mod_ssl
>= 2.4.0, < 2.4.68+ 11 more
- (no CPE)range: >= 2.4.0, < 2.4.68
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 1:2.4.63-13.el10_2.4
- (no CPE)range: < 2.4.63-13.el10_2.4
- (no CPE)range: < 1:2.4.63-13.el10_2.4
Patches
Vulnerability mechanics
References
2- httpd.apache.org/security/vulnerabilities_24.htmlnvdVendor Advisory
- www.openwall.com/lists/oss-security/2026/06/08/6nvdMailing List
News mentions
3- Apache HTTP Server and Answer: 22 Vulnerabilities Disclosed, Including Critical FlawsVypr Intelligence · Jun 10, 2026
- Apache HTTP Server 2.4.68 Released With Fix For Use-After-Free, DoS, XSS, and Buffer Overflow FlawsCyber Security News · Jun 9, 2026
- Apache HTTP Server: 11 Vulnerabilities Disclosed, Including DoS and Memory Corruption FlawsVypr Intelligence · Jun 8, 2026