CVE-2026-33857
Out-of-bounds Read in Apache HTTP Server mod_proxy_ajp
Publication date: 2026-05-04
Last updated on: 2026-05-04
Assigner: Apache Software Foundation
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| apache | http_server | to 2.4.67 (exc) |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-125 | The product reads data past the end, or before the beginning, of the intended buffer. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability is an out-of-bounds read issue in the mod_proxy_ajp module of the Apache HTTP Server. It affects versions up to 2.4.66 and allows reading memory outside the intended buffer boundaries.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized disclosure of information because it allows reading data beyond the intended memory area. However, it does not affect integrity or availability.
What immediate steps should I take to mitigate this vulnerability?
Users are recommended to upgrade Apache HTTP Server to version 2.4.67, which fixes the out-of-bounds read vulnerability in mod_proxy_ajp.