CVE-2026-111816: Trafficserver · (Apache Traffic Server forwarded a malformed 302 response that should h ...)
Affects trafficserverSource GCVE Database
Not known to be exploited · CVSS 9.3 Critical.
Data as of 27 Oct 2026, 07:56 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 21 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 24.04 LTStrafficserverpkg:deb/ubuntu/trafficserver?arch=source&distro=nobleOther threats | Affected
| Fixed in– |
Ubuntu Pro 22.04 LTStrafficserverpkg:deb/ubuntu/trafficserver?arch=source&distro=esm-apps/jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTStrafficserverpkg:deb/ubuntu/trafficserver?arch=source&distro=esm-apps/focalOther threats | Affected
| Fixed in– |
Ubuntu 18.04 LTStrafficserverpkg:deb/ubuntu/trafficserver?arch=source&distro=bionicOther threats | Affected
| Fixed in– |
Ubuntu 16.04 LTStrafficserverpkg:deb/ubuntu/trafficserver?arch=source&distro=xenialOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is available, monitor official Apache Traffic Server advisories for updates. No specific mitigation steps are provided in the available data.
Description
Apache Traffic Server versions including 5.3.0-2ubuntu1 through 9.2.3+ds-1+deb12u1build1 contain a critical vulnerability (CVE-2026-111816) where the server forwards a malformed 302 HTTP response improperly. This vulnerability has a high CVSS score of 9.3, indicating critical severity with potential impact on confidentiality and integrity. There is no public information on exploits in the wild or patch availability in the provided data.