Bug 2531215 (CVE-2026-87933)

Summary: CVE-2026-87933 cJSON: cJSON: Memory corruption via use after free in cJSONUtils_MergePatch
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: akhatavk, anthomas, aos-team-art-private, asdas, dpaolell, ehelms, ggainey, jdelft, jpasqual, jupierce, juwatts, lgarciaa, mbiarnes, mdellweg, mhulan, nmoumoul, osousa, pcreech, ppalepu, ppostler, prdhamdh, rchan, rhel-process-autobot, sghai, sidsharm, smallamp, suppawar, tmalecek, vlaad, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in DaveGamble cJSON. The `cJSONUtils_MergePatch` function in `cJSON_Utils.c` is vulnerable to a use-after-free error. A remote attacker could exploit this memory corruption vulnerability, potentially leading to information disclosure, data corruption, or denial of service.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2533002, 2533003    
Bug Blocks:    

Description OSIDB Bzimport 2026-09-10 01:01:14 UTC
A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.