Status: UPDATED | Advisory ID: CVE-2026-56154
| CVE | CVE-2026-56154 |
| CVSS Score / Version | 9.8 (Critical) / CVSS v3.1 |
| Updated | 2026-10-01 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | Apache Software Foundation Apache HTTP Server |
| Classified as | CWE-416 (Use After Free) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache Software Foundation | Apache HTTP Server |
| Subsystems | General OT |
| Sectors | Multiple |
Use After Free vulnerability in Apache HTTP Server's mod_rewrite when using lookahead (%{LA-U:HTTP:...})
This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Monitor Apache Software Foundation's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-56154 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-56154 |