# Jenkins LTS vulnerabilities

Source: https://junglewise.ai/threats/technologies/jenkins-lts  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/jenkins-lts.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Jenkins LTS: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 2 exploited in the wild. The most recent, CVE-2026-53440, was published on 10 June 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (2 critical, 2 exploited in the wild)

## About Jenkins LTS

Long-term support release of Jenkins continuous integration and delivery server.

## Latest Jenkins LTS vulnerabilities

- [CVE-2026-53440: Jenkins open redirect in Delegate to servlet container security realm](https://junglewise.ai/threats/cve-2026-53440-jenkins-open-redirect-in-delegate-to-servlet-container-security) (medium, CVSS 4.3, published 10 Jun 2026)
- [CVE-2015-5317: Jenkins discloses project names via fingerprints](https://junglewise.ai/threats/cve-2015-5317-jenkins-user-interface-ui-information-disclosure-vulnerability) (critical, exploited in the wild, CVSS 3.1, published 13 May 2022)
- [CVE-2018-1000861: Deserialization of Untrusted Data in Jenkins](https://junglewise.ai/threats/cve-2018-1000861-jenkins-stapler-web-framework-deserialization-of-untrusted-data) (critical, exploited in the wild, CVSS 3, published 13 May 2022)

## Most severe Jenkins LTS vulnerabilities

- [CVE-2015-5317: Jenkins discloses project names via fingerprints](https://junglewise.ai/threats/cve-2015-5317-jenkins-user-interface-ui-information-disclosure-vulnerability) (critical, exploited in the wild, CVSS 3.1, published 13 May 2022)
- [CVE-2018-1000861: Deserialization of Untrusted Data in Jenkins](https://junglewise.ai/threats/cve-2018-1000861-jenkins-stapler-web-framework-deserialization-of-untrusted-data) (critical, exploited in the wild, CVSS 3, published 13 May 2022)
- [CVE-2026-53440: Jenkins open redirect in Delegate to servlet container security realm](https://junglewise.ai/threats/cve-2026-53440-jenkins-open-redirect-in-delegate-to-servlet-container-security) (medium, CVSS 4.3, published 10 Jun 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Other Jenkins technologies

- [Jenkins](https://junglewise.ai/threats/technologies/jenkins): 42 vulnerabilities
- [Jenkins Script Security](https://junglewise.ai/threats/technologies/script-security): 11 vulnerabilities
- [Jenkins Script Security Plugin](https://junglewise.ai/threats/technologies/script-security-plugin): 11 vulnerabilities
- [Jenkins Mcp Server](https://junglewise.ai/threats/technologies/mcp-server): 4 vulnerabilities
- [Jenkins Pipeline: Groovy Libraries Plugin](https://junglewise.ai/threats/technologies/pipeline-groovy-libraries-plugin): 3 vulnerabilities
- [Jenkins Publish To Bitbucket](https://junglewise.ai/threats/technologies/publish-to-bitbucket): 3 vulnerabilities

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Jenkins LTS vulnerabilities", https://junglewise.ai/threats/technologies/jenkins-lts, 9 November 2026.