CVE-2026-111814: Trafficserver · (Apache Traffic Server's default outbound session-sharing policy can re ...)
Affects trafficserverSource GCVE Database
Not known to be exploited · CVSS 10.0 Critical.
Data as of 27 Oct 2026, 07:57 UTC
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/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
In the meantime, consider reviewing and adjusting session-sharing policies if possible to reduce exposure.
Description
Apache Traffic Server contains a critical vulnerability (CVE-2026-111814) related to its default outbound session-sharing policy. This flaw allows an attacker to potentially reuse session information across different outbound connections, leading to a complete compromise of confidentiality and integrity without requiring user interaction. The vulnerability affects multiple specific versions of Traffic Server as listed. The CVSS score is 10.0, indicating a critical severity with network attack vector, low complexity, no privileges required, no user interaction, and scope changed. No public exploits or patches are currently documented in the provided data.