CVE-2026-70437

Severity: low (CVSS 3.7 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-05 · updated 2026-10-24
Weakness: CWE-208

Description

Jenkins Webhook Secret Credentials Provider Plugin 16.v0cfa_f0215cf5 and earlier does not use a constant-time comparison function when checking whether the provided and expected webhook bearer token are equal, potentially allowing attackers to use statistical methods to obtain a valid webhook bearer token.

Affected products

Jenkins Project Jenkins Webhook Secret Credentials Provider Plugin: through 16.v0cfa_f0215cf5

References

https://www.jenkins.io/security/advisory/2026-08-05/#SECURITY-3918

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