CVE-2026-48920

CVSS 8.8 HIGHEPSS 0.3%CWE-73

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.8EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch referenciado

Lifecycle

27 May 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

Jenkins Email Extension Plugin 1933.v45cec755423f and earlier allows inlining images as `base64` in email content by setting the `data-inline` attribute, without restrictions on the image URLs that can be inlined, allowing attackers able to control the email content to specify `file:` URLs for images to read arbitrary files from the Jenkins controller filesystem.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

Jenkins Project · Jenkins Email Extension Plugin

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References

https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3705