Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme_CVE-2026-27018

7.8 / 10

HIGH

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Description

Gotenberg is an API for converting document formats. Prior to version 8.29.0, the fix introduced for CVE-2024-21527 can be bypassed using mixed-case or uppercase URL schemes. This issue has been patched in version 8.29.0.

Basic Information

ID CVE-2026-27018

Source GitHub_M

Published Mar 30, 2026 at 20:14

Modified Mar 31, 2026 at 14:16

Affected Product

Vendor gotenberg

Product gotenberg

Version < 8.29.0

Affected Versions gotenberg gotenberg < 8.29.0

CWE Classification

CWE-22 CWE-918

References

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    "published": "2026-03-30T20:14:32.860Z",
    "modified": "2026-03-31T14:16:20.913Z",
    "type": "cve",
    "title": "Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme",
    "source": "GitHub_M",
    "references": "https://github.com/gotenberg/gotenberg/security/advisories/GHSA-jjwv-57xh-xr6r\nhttps://github.com/gotenberg/gotenberg/commit/06b2b2e10c52b58135edbfe82e94d599eb0c5a11\nhttps://github.com/gotenberg/gotenberg/commit/8625a4e899eb75e6fcf46d28394334c7fd79fff5\nhttps://github.com/gotenberg/gotenberg/releases/tag/v8.29.0",
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