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The Apache Software Foundation updated its Apache HTTP Server 2.4 vulnerability record to include fixes in version 2.4.68, with two CVEs credited to AISLE Research. Apache’s official security page lists the flaws among httpd vulnerabilities affecting the 2.4 branch, while separate reporting notes that the issues were accepted as distinct CVEs and tracked under Apache’s upstream severity classifications.
The disclosures indicate the vulnerabilities were addressed as part of the 2.4.68 release and formally attributed by Apache to AISLE Research, adding to the project’s broader stream of externally reported security findings. Public reporting did not provide deep technical exploitation details, but the references show the issues were recognized by Apache as legitimate security defects requiring remediation in supported httpd deployments.
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1 event from the most recent confirmed update back to the earliest known activity.
Apache's HTTP Server 2.4 vulnerability page lists vulnerabilities associated with version 2.4.68, including two CVEs later noted as credited to AISLE Research. This is the earliest explicit dated event in the provided references.
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The Apache Software Foundation released **Apache HTTP Server 2.4.68** to patch 13 vulnerabilities affecting versions prior to `2.4.68`, with many issues spanning `2.4.0` through `2.4.67`. The flaws span multiple modules, including `mod_http2`, `mod_proxy_ftp`, `mod_proxy_html`, `mod_ssl`, `mod_ldap`, `mod_dav_fs`, `mod_xml2enc`, and `mod_headers`, and include use-after-free, heap and buffer overflows, out-of-bounds reads, denial-of-service conditions, cross-site scripting, privilege-escalation and path-handling weaknesses. Apache and national defenders, including Canada’s Cyber Centre, urged administrators to review the advisory and upgrade because workarounds are unavailable for most of the issues. Notable CVEs include `CVE-2026-49975`, a `mod_http2` denial-of-service bug triggered by excessive size values in malicious HTTP/2 requests; `CVE-2026-48913`, a `mod_http2` memory-corruption issue when file handles are exhausted; `CVE-2026-34355` and `CVE-2026-34356`, buffer-overflow flaws tied to untrusted backend systems in `mod_proxy_html` and `ProxyPassReverseCookie*`; `CVE-2026-44631`, a heap underflow in `ap_regname` caused by crafted regular expressions; `CVE-2026-29167`, a `mod_ldap` per-directory use-after-free; `CVE-2026-29170` and `CVE-2026-44186` in `mod_proxy_ftp`; `CVE-2026-44185` in `mod_ssl` OCSP handling; and `CVE-2026-42535` in `mod_dav_fs`. The release also ships non-security changes such as OpenSSL 4.0 support and `mod_http2` updates, but the immediate priority for exposed environments is upgrading all Apache HTTP Server deployments to `2.4.68`.
Jun 29, 2026
The Apache Software Foundation released **Apache HTTP Server 2.4.67** to fix five vulnerabilities, led by **`CVE-2026-23918`**, an important- to high-severity flaw in the HTTP/2 implementation. Apache said the bug is a **double free** triggered by an early reset that could lead to **remote code execution**, and that it affects **version 2.4.66**. The issue was reported in December 2025 and fixed shortly afterward, with public disclosure following on the `oss-sec` mailing list; Bartlomiej Dmitruk of striga.ai and Stanislaw Strzalkowski of isec.pl were credited with finding it. The 2.4.67 release also patches **`CVE-2026-24072`** in `mod_rewrite`, which can allow local `.htaccess` authors to read arbitrary files as the `httpd` user, along with lower-severity issues in `mod_proxy_ajp`, `mod_md`, and `mod_dav_lock`. Apache and downstream reporting urged organizations running **2.4.66 or earlier** to upgrade immediately, while temporary mitigations for environments that cannot patch at once include disabling **HTTP/2**, removing `mod_dav_lock`, and reviewing `.htaccess` permissions.
Jun 29, 2026
Apache HTTP Server disclosed **CVE-2026-23918**, a high-severity double-free flaw in `mod_http2` affecting version `2.4.66`, with researchers showing it can be triggered remotely over a single TCP connection by sending crafted HTTP/2 frames on the same stream. The bug stems from the same `h2_stream` object being queued twice for cleanup, causing a second `apr_pool_destroy` on freed memory; on multi-threaded MPM deployments such as **event** and **worker**, this can reliably crash worker processes without authentication, while **prefork** is not affected. Public reporting said denial-of-service is the most practical near-term outcome, but under specific conditions the memory corruption can be developed into pre-authenticated remote code execution. Apache fixed the issue in **version 2.4.67** by preventing duplicate cleanup entries and urged administrators to upgrade immediately. Guidance published alongside the disclosure recommended temporarily disabling **HTTP/2** where patching is delayed, using rate limiting or a WAF to reduce opportunistic abuse, and reviewing exposure from related modules after the same release also patched flaws in `mod_rewrite`, `mod_proxy_ajp`, `mod_md`, and `mod_dav_lock`. At the time of publication, sources said there was **no confirmed in-the-wild exploitation**, but warned that Apache HTTP Server's broad deployment and common `mod_http2` enablement make internet-facing systems attractive targets.
Jun 29, 2026