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CVE-2026-48920
Published: May 27, 2026
Modified: May 27, 2026
PUBLISHED
Description
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.
| Vendor | Product | Versions |
|---|---|---|
Jenkins Project | Jenkins Email Extension Plugin | affected 0 - <= 1933.v45cec755423f |
References
Jenkins Security Advisory 2026-05-27
vendor-advisory
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