What is CVE-2026-72912?

CVE-2026-72912 is a medium-severity vulnerability in Gchq Cyberchef, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-08-10.

How severe is CVE-2026-72912?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Resource exhaustion in Gchq Cyberchef

CVE-2026-72912

CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.3.0, CyberChef's pretty-recipe parser in src/core/Utils.mjs can exhaust client-side CPU when a malformed #recipe= URL fragment containing a large…

Vulnerability class: DoS (Denial of Service)

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.

Affected products

Gchq Cyberchef — versions < 11.3.0

Weakness classification (CWE)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-72912?: CVE-2026-72912 is a medium-severity vulnerability in Gchq Cyberchef, classified under Uncontrolled Resource Consumption. CVSS score: 4.3/10. Published 2026-08-10.
How severe is CVE-2026-72912?: Medium severity. CVSS v3 base score is 4.3 out of 10.