QuickJS before 7414e5f has a quickjs.h JS_FreeValueRT use-after-free because of incorrect…
Priority LOW 18CWE-416Published · Updated
Key facts
- Attack vector
- Adjacent network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- Low · Low · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
QuickJS before 7414e5f has a quickjs.h JS_FreeValueRT use-after-free because of incorrect garbage collection of async functions with closures.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00345 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-48184
- 2026-10-03 Alias added: GHSA-px9h-hqw8-r2j9
References
More Quickjs vulnerabilities
- TI-2025-38733 Use-after-free in js_std_promise_rejection_check in QuickJS CVSS 4.0HIGH 8.8
- TI-2025-42911 A crafted JavaScript input executed with the QuickJS release 2025-09-13, fixed in commit… CVSS 3.1HIGH 7.5
- TI-2025-29366 quickjs-ng through 0.9.0 has an incorrect size calculation in JS_ReadBigInt for a BigInt… CVSS 3.1HIGH 8.4
- TI-2025-38738 Integer overflow in js_bigint_from_string in QuickJS CVSS 4.0HIGH 7.1
- TI-2025-38737 Type confusion in string addition in QuickJS CVSS 4.0HIGH 7.1
- TI-2025-38736 Type confusion in string addition in QuickJS CVSS 4.0HIGH 7.1
Sources
- CVE-2023-48184 · CVE Program
- CVE-2023-48184 · NVD
- FIRST EPSS
- GHSA-px9h-hqw8-r2j9 · GitHub Advisory Database · CC BY 4.0
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