SB2026041326 - Multiple vulnerabilities in jq

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Main Vulnerability Database SB2026041326

SB2026041326 - Multiple vulnerabilities in jq

Published: April 13, 2026

Security Bulletin ID SB2026041326
Severity
High
Patch available
NO
Number of vulnerabilities 6
Exploitation vector Remote access
Highest impact Denial of service

Breakdown by Severity

High 33% Medium 67%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 6 secuirty vulnerabilities.


1) Out-of-bounds read (CVE-ID: CVE-2026-39979)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to a boundary condition in the "jv_parse_sized()" function. A remote attacker can trigger an out-of-bounds read error and read contents of memory on the system or perform a denial of service (DoS) attack.


2) NULL pointer dereference (CVE-ID: CVE-2026-39956)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to jq _strindices missing runtime type checks. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack or gain access to sensitive information.


3) Improper Null Termination (CVE-ID: CVE-2026-33948)

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to embedded-NUL truncation in jq CLI JSON input path. A remote attacker can cause validation bypass on the system.


4) Integer overflow (CVE-ID: CVE-2026-32316)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in the "jvp_string_append" and "jvp_string_copy_replace_bad" functions. A remote attacker can pass specially crafted data to the application, trigger integer overflow and cause a denial of service condition on the target system.


5) Inefficient Algorithmic Complexity (CVE-ID: CVE-2026-40164)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to inefficient algorithmic complexity within hardcoded MurmurHash3 seed. A remote attacker can cause a denial of service condition on the target system.


6) Uncontrolled Recursion (CVE-ID: CVE-2026-33947)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to uncontrolled recursion in the "jv_setpath()", "jv_getpath()" and "delpaths_sorted()" functions in src/jv_aux.c. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References