CVE-2026-48920
- State
- Published
- Severity
- 8.8 High
- Published
- May 27, 2026
- Updated
- May 27, 2026
- Reserved
- May 26, 2026
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.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 8.8 High | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | CISA-ADP |
Weaknesses
- CWE-73 External Control of File Name or Path
Affected Products
| Product | Versions |
|---|---|
Jenkins Email Extension PluginJenkins Project |
|
References
- Jenkins Security Advisory 2026-05-27vendor-advisory
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