CVE-2026-67217

Name
CVE-2026-67217
Description
cJSON through 1.7.19 applies RFC 6902 JSON Patch operations non-atomically in apply_patch() in cJSON_Utils.c. For a replace operation that is missing its value member, or a move operation whose destination path cannot be resolved, the existing target member is detached and deleted before the operation is fully validated, so the target document is mutated while cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive() returns a failure status. An attacker who can supply the patch document can destroy addressable members of the target document even though the API reports that the patch failed, defeating the all-or-nothing behavior callers rely on to reject bad patches.
NVD Severity
unknown
Other trackers
CVE, NVD, CERT, CVE Details, CIRCL, Arch Linux, Debian, Red Hat, Ubuntu, Gentoo, SUSE (Bugzilla), SUSE (CVE), Mageia
Mailing lists
oss-security, full-disclosure, bugtraq
Exploits
Exploit DB, Metasploit
Forges
GitHub (code, issues), Aports (code, issues)

References

Type URI
disclosure@vulncheck.com https://github.com/DaveGamble/cJSON/blob/v1.7.19/cJSON_Utils.c#L887-L948
disclosure@vulncheck.com https://joshua.hu/cjson-json-parser-cve-vulnerabilities
disclosure@vulncheck.com https://www.vulncheck.com/advisories/cjson-json-patch-non-atomic-application-destroys-data-before-validation

Match rules

CPE URI Source package Min version Max version
cpe:2.3:a:davegamble:cjson:*:*:*:*:*:*:*:* cjson >= None <= 1.7.19

Vulnerable and fixed packages

Source package Branch Version Maintainer Status
cjson edge-main 1.7.19-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson edge-main 1.7.19-r0 None possibly vulnerable
cjson edge-main 1.7.18-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson edge-main 1.7.18-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson edge-main 1.7.17-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.24-main 1.7.19-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.23-main 1.7.19-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.22-main 1.7.19-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.22-main 1.7.18-r1 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.22-main 1.7.17-r0 None possibly vulnerable
cjson 3.21-main 1.7.19-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.21-main 1.7.18-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.21-main 1.7.17-r0 None possibly vulnerable
cjson 3.20-main 1.7.19-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.20-main 1.7.18-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.20-main 1.7.17-r0 None possibly vulnerable
cjson 3.19-main 1.7.19-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable
cjson 3.19-main 1.7.17-r0 Jakub Jirutka <jakub@jirutka.cz> possibly vulnerable