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TI-2026-32544 Aliases CVE-2026-44644GHSA-2qv6-9wx5-cwv4

LiquidJS's strip_html filter bypass via newline characters in HTML tags enables XSS

Priority MEDIUM 60CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-79.

Summary

LiquidJS is a Shopify/GitHub Pages compatible template engine written in pure JavaScript. Versions 10.25.7 and below are vulnerable to XSS through a flaw in the strip_html filter logic. The strip_html filter is intended to remove HTML tags from a string before rendering, and is widely used as an XSS sanitizer. The implementation uses a regex whose catch-all branch (<.*?>) does not match line terminators, so any HTML tag containing a \n or \r character passes through unmodified. An attacker who can place a newline inside a tag (e.g. <img\nsrc=x\nonerror=alert(1)>) bypasses sanitization entirely, since browsers treat newlines as whitespace within a tag and execute the resulting onerror/onload/etc. handler. Exploitation is possible for applications that both render attacker-controlled strings via {{ x | strip_html }} to defend against HTML injection and do not separately HTML-escape that output (default behavior — outputEscape is unset by default). This issue has been fixed in version 10.26.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0025 16th percentileScored 2026-11-07
Fix Fixed liquidjs (harttle): 10.26.0liquidjs (npm): 10.26.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
harttleliquidjsbefore 10.26.010.26.0Patch availableCNA
—liquidjs (npm)before 10.26.010.26.0Patch availableGHSA-2qv6-9wx5-cwv4
  • liquidjs Vendorharttle Affected before 10.26.0 Fixed in 10.26.0 Patch available CNA
  • liquidjs (npm) Vendor— Affected before 10.26.0 Fixed in 10.26.0 Patch available GHSA-2qv6-9wx5-cwv4

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:*:*:*——harttle
  • cpe:2.3:a:liquidjs:liquidjs:*:*:*:*:*:*:*:* Versions — — ·harttle

Remediation

  • Fix · CNA liquidjs (harttle) Fixed in 10.26.0
  • Fix · GHSA-2qv6-9wx5-cwv4 liquidjs (npm) Fixed in 10.26.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-44644
  2. 2026-10-03 Alias added: GHSA-2qv6-9wx5-cwv4

References

Advisory 1

Other 5

  • TI-2026-33363 LiquidJS is Vulnerable to Remote Code Execution CVSS 3.1CRITICAL 10.0
  • TI-2026-44110 LiquidJS: An infinite loop vulnerability in `strip_html` filter CVSS 4.0HIGH 8.7
  • TI-2026-40114 LiquidJS: `pop` filter bypasses `memoryLimit` accounting that its array-filter siblings enforce CVSS 4.0HIGH 8.2
  • TI-2026-33362 LiquidJS: ReDoS via Quadratic Backtracking in `strip_html` Filter Regex CVSS 3.1HIGH 7.5
  • TI-2026-29912 LiquidJS is vulnerable to Denial of Service via circular block reference in layout CVSS 3.1HIGH 7.5
  • TI-2026-28394 Information disclosure in harttle liquidjs CVSS 3.1HIGH 7.5
See all 18 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences