Prototype-property disclosure via dropped render override
Published Jun 17, 2026 · Updated Jun 17, 2026
Information disclosure in LiquidJS 10.25.7 and earlier allows remote attackers to read prototype-chain properties via crafted templates. Context.spawn creates render-partial child contexts without copying the resolved ownPropertyOnly setting, so lookups fall back to the permissive instance option. Exposure requires an application configured with instance-level ownPropertyOnly disabled, a per-render override enabled, attacker-controlled template content using a render partial, and an object containing sensitive inherited properties.
Summary
What happened
Information disclosure in LiquidJS 10.25.7 and earlier allows remote attackers to read prototype-chain properties via crafted templates. Context.spawn creates render-partial child contexts without copying the resolved ownPropertyOnly setting, so lookups fall back to the permissive instance option. Exposure requires an application configured with instance-level ownPropertyOnly disabled, a per-render override enabled, attacker-controlled template content using a render partial, and an object containing sensitive inherited properties.
The record
- CVE
- CVE-2026-44646
- Published
- Jun 17, 2026
- Updated
- Jun 17, 2026
- Vendor
- LiquidJS
- Product
- LiquidJS
- Classifications
- CWE-693, T1190
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jun 17, 2026CVE publishedPublication date reported by the CVE source.
- Jun 17, 2026Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=< 10.26.0
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- Upstream render-partial prototype-property disclosure proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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