CVE-2026-116620: Tencent RapidJSON Regex stream.h Take out-of-bounds

Severity: high (CVSS 7.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-10-27 · updated 2026-10-27
Weakness: CWE-119

Description

A security vulnerability has been detected in Tencent RapidJSON up to 1.1.0. This issue affects the function GenericStringStream<UTF8<char>>::Take in the library include/rapidjson/stream.h of the component Regex Parser. The manipulation leads to out-of-bounds read. The attack can be initiated remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected products

Tencent RapidJSON: 1.0, 1.1.0

References

https://github.com/Tencent/rapidjson/
https://github.com/Tencent/rapidjson/issues/2401
https://vuldb.com/cve/CVE-2026-116620
https://vuldb.com/submit/1024236
https://vuldb.com/vuln/426552
https://vuldb.com/vuln/426552/cti

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