CVE-2026-40044

CRITICAL

9.8

Description

Pachno 1.0.6 contains a deserialization vulnerability that allows unauthenticated attackers to execute arbitrary code by injecting malicious serialized objects into cache files. Attackers can write PHP object payloads to world-writable cache files with predictable names in the cache directory, which are unserialized during framework bootstrap before authentication checks occur.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published4/13/2026

Last Modified4/17/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-502

References

https://www.vulncheck.com/advisories/pachno-filecache-deserialization-remote-code-execution(disclosure@vulncheck.com)

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2026-5986.php(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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