njs through 0.4.3, used in NGINX, has an out-of-bounds read in njs_json_stringify_iterator in njs_json.c.
Priority LOW 25CWE-125Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
njs through 0.4.3, used in NGINX, has an out-of-bounds read in njs_json_stringify_iterator in njs_json.c.
Why it matters now
EPSS 0.00418 36th 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
Not available: CISA has not published SSVC decision points for this record.
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-2020-24348
- 2026-10-03 Alias added: GHSA-7rc2-4h6w-5wx8
References
More F5 Njs vulnerabilities
- TI-2022-21129 Nginx NJS v0.7.2 was discovered to contain a heap-use-after-free bug caused by illegal… CVSS 3.1CRITICAL 9.8
- TI-2020-13678 Buffer Overflow found in Nginx NJS allows a remote attacker to execute arbitrary code via… CVSS 3.1CRITICAL 9.8
- TI-2020-13676 Buffer Overflow vulnerabilty found in Nginx NJS v.0feca92 allows a remote attacker to… CVSS 3.1CRITICAL 9.8
- TI-2023-12380 Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function… CVSS 3.1HIGH 7.5
- TI-2023-12378 Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function… CVSS 3.1HIGH 7.5
- TI-2023-12377 Nginx NJS v0.7.10 was discovered to contain a segmentation violation via the function… CVSS 3.1HIGH 7.5
Sources
- CVE-2020-24348 · CVE Program
- CVE-2020-24348 · NVD
- FIRST EPSS
- GHSA-7rc2-4h6w-5wx8 · GitHub Advisory Database · CC BY 4.0
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