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TI-2023-26962 Aliases CVE-2023-49355GHSA-4c3j-f924-rc7v

decToString in decNumber/decNumber.c in jq 88f01a7 has a one-byte out-of-bounds write via…

Priority HIGH 72CWE-787Published · Updated

Key facts

Attack vector
Network
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 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

decToString in decNumber/decNumber.c in jq 88f01a7 has a one-byte out-of-bounds write via the " []-1.2e-1111111111" input. NOTE: this is not the same as CVE-2023-50246. The CVE-2023-50246 71c2ab5 reference mentions -10E-1000010001, which is not in normalized scientific notation.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0117 67th 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
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

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:jqlang:jq:1.7-37-g88f01a7:*:*:*:*:*:*:*1.7-37-g88f01a7Vulnerablejqlang
  • cpe:2.3:a:jqlang:jq:1.7-37-g88f01a7:*:*:*:*:*:*:* Versions 1.7-37-g88f01a7 Vulnerable ·jqlang

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-49355
  2. 2026-10-03 Alias added: GHSA-4c3j-f924-rc7v

References

Exploit 1

Patch 1

Other 1

  • 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-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
  • TI-2024-15439 jq has signed integer overflow in jv.c:jvp_array_write CVSS 3.1MEDIUM 6.5
See all 21 →

Sources

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