npm/cyberchef CVE-2026-57439: medium 5, EPSS 0.24%

CyberChef: Prototype pollution in Series Chart operation

Action: Upgrade cyberchef to 11.2.0 or later.

npm i cyberchef@11.2.0

Affected

Fixed versions

Sources

• osv: GHSA-fx6f-382r-j72c
• https://github.com/gchq/CyberChef/security/advisories/GHSA-fx6f-382r-j72c
• https://nvd.nist.gov/vuln/detail/CVE-2026-57439
• https://github.com/gchq/CyberChef/issues/2568
• https://github.com/gchq/CyberChef/pull/2569
• https://github.com/gchq/CyberChef/commit/85db3be5d0096859b810f0e8d3e151d5dc9b948f
• https://github.com/gchq/CyberChef
• https://github.com/gchq/CyberChef/releases/tag/v11.2.0

CVE-2026-57439 · published 2026-09-24T19:24:30Z · modified 2026-09-24T19:45:04.823027737Z · JSON