Is there a public exploit for CVE-2026-121261?

No public exploit for CVE-2026-121261 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-2026-121261?

CVE-2026-121261 scores CVSS 5.3 (v4.0), rated medium.

What does CVE-2026-121261 affect?

CVE-2026-121261 affects phpMyAdmin ShapeFile.

5.3 Medium

A vulnerability has been found in phpMyAdmin ShapeFile up to 4.0.1.

CVE-2026-121261

A vulnerability has been found in phpMyAdmin ShapeFile up to 4.0.1. Impacted is the function ShapeRecord::loadFromFile of the component SHP File Handler. Such manipulation leads to infinite loop. The attack can be executed remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Assessment

CVSS: 5.3 (v4.0)
Severity: Medium
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 3 November 2026
Last updated: 3 November 2026
Affected: phpMyAdmin · ShapeFile
Assigner: VulDB

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

At the source

EUVD (ENISA)

References

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