Description
A bug in POST request handling causes a crash under a certain condition.
This issue affects Apache Traffic Server: from 10.0.0 through 10.1.1, from 9.0.0 through 9.2.12.
Users are recommended to upgrade to version 10.1.2 or 9.2.13, which fix the issue.
A workaround for older versions is to set proxy.config.http.request_buffer_enabled to 0 (the default value is 0).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Traffic Server | 10.0.0 – ≤ 10.1.1, 9.0.0 – ≤ 9.2.12 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 12 | trafficserver | 9.2.5+ds-0+deb12u4 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | trafficserver | No fix yet | — |
| Ubuntu 24.04 LTS | trafficserver | No fix yet | — |
| Ubuntu 18.04 LTS | trafficserver | No fix yet | — |
| Ubuntu 16.04 LTS | trafficserver | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 22.04 LTS | trafficserver | No fix yet | — |
| Ubuntu Pro 20.04 LTS | trafficserver | No fix yet | — |
Advisories 1
- WID-SEC-2026-0978 Apache Traffic Server: Mehrere Schwachstellen BSI CERT-Bund (WID) · Apr 6, 2026
References
- https://lists.apache.org/thread/2s11roxlv1j8ph6q52rqo1klvl01n14q vendor-advisory