CVE-2023-26819
cJSON 1.7.15 might allow a denial of service via a crafted JSON document such as {"a": true, "b": [ null,9999999999999999999999999999999999999999999999912345678901234567]}.
CVE-2023-26819 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2023-26819, released April 19, 2025. It is not reported as exploited. Patch Radar priority: Routine.
Routine
CVSS
2.9
Low
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0023
14th percentile
cjson - security update
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| cJSON · opensuse-leap 16.0 | 1.7.19-160000.1.1 | OPENSUSE-SU-2026:20340-1 | Mar 11, 2026 |
| cJSON · sles 15.7 | 1.7.19-150700.3.3.1 | SUSE-SU-2025:03520-1 | Oct 10, 2025 |
| cjson · Debian 11.6 (bullseye) | 1.7.14-1+deb11u2 | DLA-4216-1 | Jun 15, 2025 |
| cjson · Debian 12.15 (bookworm) | 1.7.15-1+deb12u3 | DEBIAN-CVE-2023-26819 | Apr 19, 2025 |
| cjson · Debian 13.5 (trixie) | 1.7.18-3.1 | DEBIAN-CVE-2023-26819 | Apr 19, 2025 |
| cjson · Debian 14 | 1.7.18-3.1 | DEBIAN-CVE-2023-26819 | Apr 19, 2025 |
| libcjson1 · Ubuntu 20.04 LTS (focal) | 1.7.10-1.1ubuntu0.1~esm1 | libcjson1 1.7.10-1.1ubuntu0.1~esm1 | Sep 3, 2025 |
| libcjson1 · Ubuntu 22.04.1 LTS (jammy) | 1.7.15-1ubuntu0.1 | libcjson1 1.7.15-1ubuntu0.1 | Sep 3, 2025 |
| libcjson1 · Ubuntu 24.04.5 LTS (noble) | 1.7.17-1ubuntu0.1~esm3 | libcjson1 1.7.17-1ubuntu0.1~esm3 | Sep 3, 2025 |
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