Bug 2561515 (CVE-2026-116620)

Summary: CVE-2026-116620 rapidjson: rapidjson: Denial of Service via out-of-bounds read in regex parser
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: bbrownin, eglynn, jjoyce, jpretori, jschluet, lhh, mburns, mgarciac, rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in rapidjson. A remote attacker can exploit an out-of-bounds read vulnerability in the regular expression (regex) parser by providing specially crafted input. This issue primarily leads to a Denial of Service (DoS) by causing the application to crash, and may also result in the disclosure of sensitive memory contents.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 2562866, 2562867, 2562869, 2562870, 2562872, 2562875, 2562878, 2562879, 2562880, 2562881, 2562882, 2562884, 2562885, 2562887, 2562888, 2562889, 2562890, 2562891, 2562892, 2562893, 2562894, 2562895, 2562897, 2562898, 2562899, 2562900, 2562901, 2562902, 2562903, 2562904, 2562905, 2562906, 2562907    
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Description OSIDB Bzimport 2026-10-27 01:12:25 UTC 
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.