{"id":"CVE-2026-23736","summary":"seroval Affected by Prototype Pollution via JSON Deserialization","details":"seroval facilitates JS value stringification, including complex structures beyond JSON.stringify capabilities. In versions 1.4.0 and below, due to improper input validation, a malicious object key can lead to prototype pollution during JSON deserialization. This vulnerability affects only JSON deserialization functionality. This issue is fixed in version 1.4.1.","aliases":["GHSA-hj76-42vx-jwp4"],"modified":"2026-09-03T10:10:55.665805434Z","published":"2026-01-21T23:01:10.114Z","related":["openSUSE-SU-2026:11673-1"],"database_specific":{"cwe_ids":["CWE-1321"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23736.json","unresolved_ranges":[{"extracted_events":[{"fixed":"1.4.1"}],"source":"AFFECTED_FIELD"}],"cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/23xxx/CVE-2026-23736.json"},{"type":"ADVISORY","url":"https://github.com/lxsmnsyc/seroval/security/advisories/GHSA-hj76-42vx-jwp4"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23736"},{"type":"FIX","url":"https://github.com/lxsmnsyc/seroval/commit/ce9408ebc87312fcad345a73c172212f2a798060"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/lxsmnsyc/seroval","events":[{"introduced":"0"},{"fixed":"ce9408ebc87312fcad345a73c172212f2a798060"}],"database_specific":{"source":"REFERENCES"}}],"versions":["v1.3.3","v1.3.2","v1.3.1","v1.3.0","v1.2.1","v1.2.0","v1.1.1","v1.1.0","v1.0.8","v1.0.7","v1.0.6","v1.0.5","v1.0.4","v1.0.3","v1.0.2","v1.0.1","v1.0.0","v0.15.1","v0.15.0","v0.14.1","v0.14.0","v0.13.2","v0.13.1","v0.13.0","v0.12.4","v0.12.3","v0.12.2","v0.12.1","v0.12.0","v0.11.6","v0.11.5","v0.11.4","v0.11.3","v0.11.2","v0.11.1","v0.11.0","v0.10.4","v0.10.3","v0.10.2","v0.10.1","v0.10.0","v0.9.0","v0.8.0","v0.7.0","v0.6.0","v0.5.1","v0.5.0","v0.4.1","v0.4.0","v0.3.0","v0.2.1","v0.2.0","v0.1.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-23736.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"}]}