CVE-2026-111812
Apache Traffic Server's origin_server_auth plugin lets a client force signing of attacker-chosen…
- Risk score
- 68/100
- CVSS
- 10.0 v3.1
- Exploit chance (30 days)
- 0.3%
- Published
- 21 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Apache Traffic Server's origin_server_auth plugin allows a client to force signing of attacker-chosen AWS request headers under the proxy's own credentials, which could lead to high impact.
- Affected
- {'products': ['Apache Traffic Server'], 'packages': [], 'versions': ['8.0.0 through 8.1.11', '9.0.0 through 9.2.15', '10.0.0 through 10.1.4', '10.2.0']}
- Fix
- Upgrade to version 9.2.16, 10.1.5, or 10.2.1
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 10.0 critical
- Remotely exploitable without logging in
References
Original description
Apache Traffic Server's origin_server_auth plugin lets a client force signing of attacker-chosen AWS request headers under the proxy's own credentials. 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.
Last activity 21 Oct 2026. Patch Forecast updates every hour.