CVE-2025-53666: Jenkins Dead Man's Snitch Plugin 0.1 stores Dead Man's Snitch tokens unencrypted in job config.xml files on th

Routine

MEDIUM 6.5DOWNGRADE

CVE-2025-53666 is a medium-severity flaw (CVSS 6.5) affecting dead man\'s snitch. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Jenkins Dead Man's Snitch Plugin 0.1 stores Dead Man's Snitch tokens unencrypted in job config.xml files on the Jenkins controller, where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller file system.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-311
Published	2025-07-09
Last modified	2026-06-17

Publisher (CNA): Jenkins Project · Vendor: jenkins

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-07-09 16:15 UTCPublished CVE record published
2026-06-17 09:38 UTCUpdated Record last modified

jenkins dead man\'s snitch DOWNGRADE

Affected: 0.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1

1. Check installed version

apt-cache policy dead-mans-snitch || rpm -q dead-mans-snitch || dead-mans-snitch --version

2. No fixed release: DOWNGRADE to a release before 0.1 (Debian / Ubuntu)

apt-cache madison dead-mans-snitch sudo apt install dead-mans-snitch=<VERSION_BEFORE_0.1> sudo apt-mark hold dead-mans-snitch

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list dead-mans-snitch sudo dnf downgrade dead-mans-snitch-<VERSION_BEFORE_0.1> sudo dnf versionlock add dead-mans-snitch

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-53666?

dead man\'s snitch: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-53666 being exploited?

CVE-2025-53666 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-53666 affect?

CVE-2025-53666 affects dead man\'s snitch. Severity is medium (CVSS 6.5). Jenkins Dead Man's Snitch Plugin 0.1 stores Dead Man's Snitch tokens unencrypted in job config.xml files on the Jenkins controller, where they can be viewed by users with Item/Extended Read permission or access to the Jenkins controller fil

How urgent is CVE-2025-53666?

Priority 27/100. No elevated risk signals yet.

Software pages

Jenkins vulnerabilities

Related CVEs

CVE-2025-53667 MEDIUM 5.3 DOWNGRADE Jenkins Dead Man's Snitch Plugin 0.1 does not mask Dead Man's Snitch tokens displayed on the job configuration

References

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