TI-2023-27495 Aliases CVE-2023-50268

jq has stack-based buffer overflow in decNaNs

LOW 28CWE-120Published 2023-12-13 · Updated 2025-02-13

Key facts

Attack vector: Local
Privileges required: None
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 · CNA. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

jq is a command-line JSON processor. Version 1.7 is vulnerable to stack-based buffer overflow in builds using decNumber. Version 1.7.1 contains a patch for this issue.

Why it matters now

EPSS 0.00439 38th 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
jqlang	jq	= 1.7	—	No fix listed	CNA

jq Vendorjqlang Affected = 1.7 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:jqlang:jq:1.7:::::::*	1.7	Vulnerable	jqlang

cpe:2.3:a:jqlang:jq:1.7:*:*:*:*:*:*:* Versions 1.7 Vulnerable ·jqlang

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 3 products

Red Hat Ceph Storage 4
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9

Timeline

2026-10-02 Threatist record created from CVE-2023-50268

References

Exploit 1

https://github.com/jqlang/jq/security/advisories/GHSA-7hmr-442f-qc8j

Patch 3

Other 1

https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=64771

TI-2026-24844 jq: Integer overflow in jvp_string_append() allows Heap-based Buffer Overflow CVSS 3.1HIGH 8.2
TI-2025-30431 AddressSanitizer: stack-buffer-overflow in jq_fuzz_execute (jv_string_vfmt) CVSS 4.0HIGH 7.7
TI-2023-26962 decToString in decNumber/decNumber.c in jq 88f01a7 has a one-byte out-of-bounds write via… CVSS 3.1HIGH 7.5
TI-2026-28834 jq: Out-of-Bounds Read in jv_parse_sized() Error Formatting for Non-NUL-Terminated Counted Buffers CVSS 4.0MEDIUM 6.9
TI-2024-35799 Type confusion in jqlang jq CVSS 3.1HIGH 8.1
TI-2026-36743 jq --rawfile invalid-state reuse after String too long causes heap-buffer-overflow CVSS 3.1HIGH 7.1

See all 21 →

Sources

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