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.

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact High

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

The EPSS score is 0.00016.

Exploitation poc

Automatable yes

Technical Impact partial

Affected Vendors & Products

No data.

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-jjwv-57xh-xr6r Gotenberg has Chromium deny-list bypass via case-insensitive URL scheme (bypass of GHSA-rh2x-ccvw-q7r3)
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/gotenberg/gotenberg/commit/06b2b2e10c52b58135edbfe82e94d599eb0c5a11 cve-icon cve-icon
https://github.com/gotenberg/gotenberg/commit/8625a4e899eb75e6fcf46d28394334c7fd79fff5 cve-icon cve-icon
https://github.com/gotenberg/gotenberg/releases/tag/v8.29.0 cve-icon cve-icon
https://github.com/gotenberg/gotenberg/security/advisories/GHSA-jjwv-57xh-xr6r cve-icon cve-icon cve-icon
History

Tue, 31 Mar 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Tue, 31 Mar 2026 03:00:00 +0000

Type Values Removed Values Added
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.
Title Gotenberg: Chromium deny-list bypass via case-insensitive URL scheme
Weaknesses CWE-22
CWE-918
References
Metrics cvssV4_0

{'score': 7.8, 'vector': '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-03-31T14:16:20.913Z

Reserved: 2026-02-17T03:08:23.490Z

Link: CVE-2026-27018

cve-icon Vulnrichment

Updated: 2026-03-31T14:16:11.237Z

cve-icon NVD

Status : Received

Published: 2026-03-30T21:17:08.383

Modified: 2026-03-31T15:16:12.477

Link: CVE-2026-27018

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses