CVE-2026-58186

The Apache Traffic Server webp_transform plugin can decode unsafely and serve mislabeled, cacheable responses. 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 8.2 High

Status

Modified - security@apache.org

Published

2026-07-29

Last modified

2026-10-01

Weaknesses

CWE-20

Affected products

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

References

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