Denial of Service Vulnerability in LiquidJS Template Engine by Harttle
CVE-2026-61556

8.7HIGH

Key Information:

Vendor

Harttle

Status
Liquidjs
Vendor
CVE Published:
19 August 2026

What is CVE-2026-61556?

The LiquidJS template engine contains a vulnerability in its strip_html filter, allowing input that triggers an infinite loop during processing. When the input includes a less-than character (<) and lacks a corresponding greater-than character (>), the function can stall indefinitely. This results in blocked template rendering and can lead to a denial of service. This issue affects versions 10.26.0 to 10.27.1 and is resolved in version 10.27.1.

Affected Version(s)

liquidjs >= 10.26.0, < 10.27.1

References

https://github.com/harttle/liquidjs/security/advisories/G...
x_refsource_CONFIRM
https://github.com/harttle/liquidjs/pull/917
x_refsource_MISC
https://github.com/harttle/liquidjs/commit/5c3522f33928aa...
x_refsource_MISC

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.