Is there a public exploit for CVE-2026-123198?

No public exploit for CVE-2026-123198 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-123198?

CVE-2026-123198 scores CVSS 9.3 (v4.0), rated critical.

What does CVE-2026-123198 affect?

CVE-2026-123198 affects LMFDB LMFDB.

9.3 Critical

LMFDB before commit 01829bd contains a server-side template injection vulnerability in the renderknowl function that allows unauthenticated…

CVE-2026-123198

LMFDB before commit 01829bd contains a server-side template injection vulnerability in the renderknowl 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/ to reach Python builtins and execute operating system commands as the web application account.

Assessment

CVSS: 9.3 (v4.0)
Severity: Critical
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 5 November 2026
Last updated: 5 November 2026
Affected: LMFDB · LMFDB
Assigner: VulnCheck

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

At the source

EUVD (ENISA)

References

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