CVE-2026-123198

LMFDB before commit 01829bd Unauthenticated Server-Side Template Injection via /knowledge/render/<ID>

Published Nov 5, 2026 CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
Description
LMFDB before commit 01829bd contains a server-side template injection vulnerability in the render_knowl function that allows unauthenticated attackers to inject Jinja expressions via request parameters. Attackers can supply crafted query-string values or 'content' data to /knowledge/render/<ID> to reach Python builtins and execute operating system commands as the web application account.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

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

Type Values Removed Values Added
First Time appeared Lmfdb
Lmfdb lmfdb
Vendors & Products Lmfdb
Lmfdb lmfdb
Type Values Removed Values Added
Description LMFDB before commit 01829bd contains a server-side template injection vulnerability in the render_knowl function that allows unauthenticated attackers to inject Jinja expressions via request parameters. Attackers can supply crafted query-string values or 'content' data to /knowledge/render/<ID> to reach Python builtins and execute operating system commands as the web application account.
Title LMFDB before commit 01829bd Unauthenticated Server-Side Template Injection via /knowledge/render/<ID>
Weaknesses CWE-1336
References
Metrics cvssV3_1

{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}

cvssV4_0

{'score': 9.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Nov 5, 2026, 8:59 PM
Reserved
Nov 5, 2026, 5:58 PM
Status
Deferred
Published
Nov 5, 2026, 7:17 PM
Modified
Nov 12, 2026, 9:36 PM