Rundeck:
Affects rundeckSource GCVE Database
Not known to be exploited · CVSS 8.8 High : upgrade to 6.0.1-r11 soon.
Data as of 13 Nov 2026, 01:27 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 37% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 6.0.1-r11
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 15 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: 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 12 Nov 2026.
What to do
Upgrade rundeck to 6.0.1-r11.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
CleanStartrundeckpkg:apk/cleanstart/rundeckOther 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
A patch is available and the issue is fixed in Rundeck version 6.0.1-r11. Users should upgrade to this version or later to remediate the vulnerability. Since this is not a cloud service, manual patching is required. No other mitigations are indicated by the vendor advisory.
Description
A high-severity security vulnerability (CVE-2026-18661) affects the Rundeck package due to issues in Eclipse Jetty's handling of Jakarta Servlet security annotations across various versions of jetty-annotations and jetty-eeN-annotations. The flaw involves the authoritative URL pattern rules for mixed @ServletSecurity annotations and web.xml configurations. This vulnerability is fixed in Rundeck version 6.0.1-r11.