What is GHSA-5vqp-jf47-frjg?

GHSA-5vqp-jf47-frjg is a security advisory published by GitHub Security Advisories with High severity. When a client sends a POST with Expect: 100-continue and the origin answers before reading the...

Which CVE IDs does GHSA-5vqp-jf47-frjg cover?

GHSA-5vqp-jf47-frjg covers the following CVE IDs: CVE-2025-55702. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-5vqp-jf47-frjg?

GHSA-5vqp-jf47-frjg has a CVSS v3 base score of 8.7, published by GitHub Security Advisories.

GHSA-5vqp-jf47-frjgHighCVSS 8.7

When a client sends a POST with Expect: 100-continue and the origin answers before reading the...

Vendor

GitHub Security Advisories

Published

October 21, 2026

Last Modified

October 21, 2026

🔗 CVE IDs covered (1)

CVE-2025-55702 →

📋 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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2025-55702
https://lists.apache.org/thread/r95dq29ywcd1f4x30snxlqmb12z4s4kc
https://github.com/advisories/GHSA-5vqp-jf47-frjg