TI-2019-10233 Aliases CVE-2019-13617 GHSA-qp8g-8mj4-549c

njs through 0.3.3, used in NGINX, has a heap-based buffer over-read in nxt_vsprintf in…

LOW 31CWE-125Published 2019-07-16 · Updated 2024-08-04

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

njs through 0.3.3, used in NGINX, has a heap-based buffer over-read in nxt_vsprintf in nxt/nxt_sprintf.c during error handling, as demonstrated by an njs_regexp_literal call that leads to an njs_parser_lexer_error call and then an njs_parser_scope_error call.

Why it matters now

EPSS 0.01305 70th 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

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:f5:njs::::::::	up to 0.3.3	Vulnerable	F5

cpe:2.3:a:f5:njs:*:*:*:*:*:*:*:* Versions up to 0.3.3 Vulnerable ·F5

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2019-13617
2026-10-03 Alias added: GHSA-qp8g-8mj4-549c

References

Exploit 1

https://github.com/nginx/njs/issues/174

Advisory 1

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15093

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

See all 39 →

Sources

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