CVE-2026-87933

    Dashboard / Vulnerabilities / CVE-2026-87933

    CVE-2026-87933

    Published: 10 Sept 2026Last Modified: 12 Sept 2026

    Summary: DaveGamble cJSON cJSON_Utils.c cJSONUtils_MergePatch use after free

    Details: 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.

    References: https://github.com/DaveGamble/cJSON/, https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/87xxx/CVE-2026-87933.json, https://nvd.nist.gov/vuln/detail/CVE-2026-87933, https://vuldb.com/cve/CVE-2026-87933, https://vuldb.com/submit/911136, https://vuldb.com/vuln/401815, https://github.com/DaveGamble/cJSON/issues/1060, https://vuldb.com/vuln/401815/cti, https://github.com/DaveGamble/cJSON/pull/1065

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 984dc85a5f90e5fa2ec98f15db8ad96613c543b6
    Fixed -None

    Affected versions

    1.7.0
    1.7.1
    1.7.10
    1.7.11
    1.7.12
    1.7.13
    1.7.14
    1.7.15
    1.7.16
    1.7.17
    1.7.18
    1.7.19
    1.7.2
    1.7.3
    1.7.4
    1.7.5
    1.7.6
    1.7.7
    1.7.8
    1.7.9

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2026-87933 | CVE-DB