High severity · published Oct 27, 2026
CVE-2026-116620
Tencent RapidJSON Regex stream.h Take out-of-bounds
New
7.3
CVSS
0.3%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
RA
RapidJSON · Tencent
1.0; 1.1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116620
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116620
github.com
https://github.com/Tencent/rapidjson/
github.com
https://github.com/Tencent/rapidjson/issues/2401
vuldb.com
https://vuldb.com/cve/CVE-2026-116620
vuldb.com
https://vuldb.com/submit/1024236
vuldb.com
https://vuldb.com/vuln/426552
vuldb.com
https://vuldb.com/vuln/426552/cti
