{"cve":"CVE-2023-22899","nvd":{"published":"2023-01-10T02:15:09.997","modified":"2026-06-17T05:36:23.250","status":"Modified","description":"Zip4j through 2.11.2, as used in Threema and other products, does not always check the MAC when decrypting a ZIP archive.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N","score":5.9},"cwes":["CWE-346"],"references":["https://breakingthe3ma.app","https://breakingthe3ma.app/files/Threema-PST22.pdf","https://github.com/srikanth-lingala/zip4j/issues/485","https://github.com/srikanth-lingala/zip4j/releases","https://news.ycombinator.com/item?id=34316206"],"products":["zip4j_project:zip4j"],"source":"nvd","synced_at":"2026-10-19T21:37:34.931465858+00:00"},"epss":{"cve":"CVE-2023-22899","score":0.00642,"percentile":0.50797,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-2pj2-gchf-wmw7","url":"https://osv.dev/vulnerability/GHSA-2pj2-gchf-wmw7","summary":"Zip4j Origin Validation Error","modified":"2023-11-08T04:11:39.466627Z","packages":[{"ecosystem":"Maven","name":"net.lingala.zip4j:zip4j","purl":"pkg:maven/net.lingala.zip4j/zip4j","ranges":["<2.11.3"],"fixed":["2.11.3"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}