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Vulnerability · Published Oct 31, 2026 · Assigned by redhat

CVE-2026-120194Json-glib: json-glib: infinite loop in json_path_query() with negative jsonpath slice step

High 7.5

In plain English

A high-severity infinite loop in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 41% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 58.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in json-glib. The JSONPath slice evaluator used by json_path_query() can enter an infinite loop when given a slice expression with a negative step. An application that evaluates attacker-controlled JSONPath expressions can be forced into a hang, leading to a denial of service.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12json-glibno fix listedDEBIAN-CVE-2026-120194
Debian:13json-glibno fix listedDEBIAN-CVE-2026-120194
Debian:14json-glibno fix listedDEBIAN-CVE-2026-120194
Ubuntu:22.04:LTSjson-glibno fix listedUBUNTU-CVE-2026-120194
Ubuntu:24.04:LTSjson-glibno fix listedUBUNTU-CVE-2026-120194
Ubuntu:26.04:LTSjson-glibno fix listedUBUNTU-CVE-2026-120194
Ubuntu:26.10json-glibno fix listedUBUNTU-CVE-2026-120194

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 4 see references
Red Hat Red Hat OpenShift Container Platform 5 see references

Weakness: CWE-835 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References