8.7
High
CVE-2025-55702 When a client sends a POST with Expect: 100-continue and the origin answers before reading the body, Apache Traffic…
Description
When a client sends a POST with Expect: 100-continue and the origin answers before reading the body, Apache Traffic Server parses the unread body left on the client connection as the next request. An attacker behind a front-end proxy that shares connections to Traffic Server can use this to smuggle requests past the front end and desynchronize responses for other users. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.15, from 10.0.0 through 10.1.4, 10.2.0. Users are recommended to upgrade to version 9.2.16, 10.1.5, or 10.2.1, which fix the issue.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Apache Traffic Server | 10.2.0 | No fix stated |
| Apache Traffic Server 10.0 | 10.0.0 → 10.1.4 | No fix stated |
| Apache Traffic Server 9.0 | 9.0.0 → 9.2.15 | No fix stated |
| Apache Traffic Server 8.0 | 8.0.0 → 8.1.11 | No fix stated |
References
- lists.apache.org lists.apache.org
Timeline
- Published
- Last modified
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