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  4. CVE 2026 123198 lmfdb before commit 01829bd unauthenticated
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Back to active CVEs
Critical · CVSS 9.3CVE-2026-123198

LMFDB before commit 01829bd Unauthenticated Server-Side Template Injection via /knowledge/render/<ID>CVE-2026-123198

Answer in brief

CVE-2026-123198 records a Critical severity (CVSS 9.3) vulnerability in LMFDB before commit 01829bd Unauthenticated Server-Side Template Injection via /knowledge/render/<ID>. The current sources do not mark it as known exploited. The current feed maps LMFDB/LMFDB (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Nov 5, 2026Material review Nov 5, 2026
Upstream Advisory

Record context

Vulnerability class
Missing Auth
EPSS
Not reported
CWE IDs
CWE-1336
Source
CVE List V5
Source checked
Nov 5, 2026
References
5 linked sources
Open source record

Key facts

Risk
Critical · CVSS 9.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 9.3. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps LMFDB/LMFDB (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
LMFDB/LMFDBgeneric>=0 <01829bd09b692c720aad30c952758a20630573d401829bd09b692c720aad30c952758a20630573d4

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for LMFDB/LMFDB.
  2. 2Review the reported fix. Update LMFDB/LMFDB to 01829bd09b692c720aad30c952758a20630573d4 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Nov 5, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • Source referencevulncheck.com
Upstream source 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.

Quoted source text, attributed separately from HOL analysis.