{"cve":"CVE-2022-33977","nvd":{"published":"2022-07-26T06:15:08.957","modified":"2026-06-17T04:49:35.973","status":"Modified","description":"untangle is a python library to convert XML data to python objects. untangle versions 1.2.0 and earlier improperly restricts recursive entity references in DTDs. By exploiting this vulnerability, a remote unauthenticated attacker may cause a denial-of-service (DoS) condition on the server where the product is running.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5},"cwes":["CWE-776"],"references":["https://github.com/stchris/untangle","https://github.com/stchris/untangle/releases/tag/1.2.1","https://jvn.jp/en/jp/JVN30454777/","https://github.com/stchris/untangle","https://github.com/stchris/untangle/releases/tag/1.2.1"],"products":["untangle_project:untangle"],"source":"nvd","synced_at":"2026-10-19T21:33:44.859608815+00:00"},"epss":{"cve":"CVE-2022-33977","score":0.01806,"percentile":0.78571,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-7xr3-6ggc-wc9p","url":"https://osv.dev/vulnerability/GHSA-7xr3-6ggc-wc9p","summary":"untangle vulnerable to XML Entity Expansion","modified":"2024-11-18T23:22:44.741950Z","packages":[{"ecosystem":"PyPI","name":"untangle","purl":"pkg:pypi/untangle","ranges":["<1.2.1"],"fixed":["1.2.1"]}]},{"id":"PYSEC-2022-243","url":"https://osv.dev/vulnerability/PYSEC-2022-243","summary":"","modified":"2023-11-08T04:09:41.005431Z","packages":[{"ecosystem":"PyPI","name":"untangle","purl":"pkg:pypi/untangle","ranges":["<1.2.1"],"fixed":["1.2.1"]}]}],"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."]}