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TI-2021-21251 Aliases CVE-2021-46461GHSA-8g5q-f4mq-w57g

njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access…

Priority MEDIUM 48CWE-119Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.

Summary

njs through 0.7.0, used in NGINX, was discovered to contain an out-of-bounds array access via njs_vmcode_typeof in /src/njs_vmcode.c.

Why it matters now

EPSS 0.03147 88th percentileScored 2026-11-08
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

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:nginx:njs:*:*:*:*:*:*:*:*up to 0.7.0Vulnerablenginx
  • cpe:2.3:a:nginx:njs:*:*:*:*:*:*:*:* Versions up to 0.7.0 Vulnerable ·nginx

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-46461
  2. 2026-10-03 Alias added: GHSA-8g5q-f4mq-w57g

References

  • TI-2022-15882 An issue was discovered in Nginx NJS v0.7.5. CVSS 3.1HIGH 7.5
  • TI-2022-12665 Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function njs_set_number at src/njs_value.h. CVSS 3.1MEDIUM 5.5
  • TI-2022-12149 Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function… CVSS 3.1MEDIUM 5.5
  • TI-2022-12148 Nginx NJS v0.7.2 was discovered to contain a segmentation violation in the function… CVSS 3.1MEDIUM 5.5

Sources