Status: UPDATED | Advisory ID: CVE-2026-58189
| CVE | CVE-2026-58189 |
| CVSS Score / Version | 7.5 (High) / CVSS v3.1 |
| Updated | 2026-10-01 |
| CVSS Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CVSS Prose | attack vector is network; attack complexity is low; privileges required is none; user interaction is none; scope is unchanged; confidentiality impact is none; integrity impact is none; availability impact is high. |
| Affected products | Apache Traffic Server and Apache Software Foundation Apache Traffic Server |
| Classified as | CWE-918 (Server-Side Request Forgery (SSRF)) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Apache | Traffic Server | ||
| Apache Software Foundation | Apache Traffic Server |
| Subsystems | General OT |
| Sectors | Multiple |
Apache Traffic Server allows redirect-limit bypass when plugins reset the retry counter, enabling SSRF amplification.
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. (NVD)
Monitor Apache's and Apache Software Foundation's web pages for any future patch releases. See vendor advisory link below.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-58189 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-58189 |
| Vendor advisory | https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d |