CVE-2026-34355
High
Apache HTTP Server: mod_proxy_html buffer overflow
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.
Exploit probability
1.1%
Published
June 10, 2026
Required by
Not available
Last source change
August 17, 2026
02 / AFFECTED SOFTWARE
Affected packages
04 / EVIDENCE
Source records
Open Source Vulnerabilities
BIT-apache-2026-34355
View original source
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.
05 / REFERENCES
Further evidence
- http://www.openwall.com/lists/oss-security/2026/06/08/6
- https://access.redhat.com/errata/RHSA-2026:25042
- https://access.redhat.com/errata/RHSA-2026:34109
- https://access.redhat.com/errata/RHSA-2026:41906
- https://access.redhat.com/errata/RHSA-2026:42828
- https://access.redhat.com/errata/RHSA-2026:47046
- https://access.redhat.com/errata/RHSA-2026:53371
- https://access.redhat.com/security/cve/CVE-2026-34355
- https://bugzilla.redhat.com/show_bug.cgi?id=2486414
- https://httpd.apache.org/security/vulnerabilities_24.html
- https://nvd.nist.gov/vuln/detail/CVE-2026-34355
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-34355.json