CVE-2026-55865

Python Liquid is a Python engine for the Liquid template language. Prior to 2.2.1, given a malformed {% case %} tag without an associated {% when %} or {% else %} block and no terminating {% endcase %} tag, Python Liquid hangs in an infinite loop at parse time because liquid.TokenStream.eof did not give the EOF token matching kind and value fields, allowing malicious template authors to craft templates for a denial of service attack. This issue is fixed in version 2.2.1.

CVSS

No CVSS.

References

Link	Resource
https://github.com/jg-rp/liquid/commit/26db8931cf35e8433c1ca506fc32c3bb62f743d4
https://github.com/jg-rp/liquid/releases/tag/v2.2.1
https://github.com/jg-rp/liquid/security/advisories/GHSA-vq2f-vcc9-j8mv

Configurations

No configuration.

History

25 Oct 2026, 17:10

Type	Values Removed	Values Added
Summary		(es) Python Liquid es un motor Python para el lenguaje de plantillas Liquid. Anteriormente a la 2.2.1, dada una etiqueta {% case %} malformada sin un bloque {% when %} o {% else %} asociado y sin una etiqueta de cierre {% endcase %}, Python Liquid se bloqueaba en un bucle infinito en tiempo de análisis porque liquid.TokenStream.eof no proporcionaba el token EOF que coincidiera con los campos kind y value, lo que permitía a autores de plantillas maliciosos crear plantillas para un ataque de denegación de servicio. Este problema se ha corregido en la versión 2.2.1.

Information

Published : 2026-07-09 21:16

Updated : 2026-10-25 17:10

NVD link : CVE-2026-55865

Mitre link : CVE-2026-55865

CVE.ORG link : CVE-2026-55865

JSON object : View

Products Affected

No product.

CWE

CWE-835

Loop with Unreachable Exit Condition ('Infinite Loop')

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