CVE-2026-92718: Signature Bypass (CVSS 7.3)

Description

Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verified templates with unsigned malicious content and restore the original modification time to bypass signature checks and execute arbitrary operating system commands.

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CVSS v3.1 Score

7.3

HIGH

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

Weakness Type (CWE)

CWE-347 CWE-347

References

Other References

https://github.com/projectdiscovery/nuclei https://github.com/projectdiscovery/nuclei/blob/v3.11.0/pkg/catalog/index/metadata.go#L78-L84 https://github.com/projectdiscovery/nuclei/blob/v3.11.0/pkg/templates/compile.go#L610-L624 https://github.com/projectdiscovery/nuclei/commit/9de96e4dda5a03da963b9ae6582f03ea55791a76 https://github.com/projectdiscovery/nuclei/issues/7663 https://www.vulncheck.com/advisories/nuclei-from-3.7.0-before-3.11.1-template-signature-bypass-via-modification-time-only-cache

Frequently Asked Questions

What is CVE-2026-92718? +

Nuclei versions before 3.11.1 cache template signature verification based only on file modification time without content checksums. Attackers can replace verified templates with unsigned malicious content and restore the original modification time to bypass signature checks and execute arbitrary operating system commands. It has a CVSS v3.1 base score of 7.3 (HIGH).

How severe is CVE-2026-92718? +

CVE-2026-92718 has a CVSS v3.1 score of 7.3 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

How do I check if I'm vulnerable to CVE-2026-92718? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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