CVE-2026-58156

Apache Traffic Server mis-parses ports in URLs and userinfo, allowing port-based access-control bypass. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.11, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

Score

CVSS 4.0 6.3 Medium

Status

Modified - security@apache.org

Published

2026-07-29

Last modified

2026-10-01

Weaknesses

CWE-863

Affected products

• Traffic Server (Apache)
• Apache Traffic Server (Apache Software Foundation)

References

• https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d