What is CVE-2022-0198?

CVE-2022-0198 is a high-severity vulnerability in Stanford Corenlp, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.1/10. Published 2022-01-13.

How severe is CVE-2022-0198?

High severity. CVSS v3 base score is 7.1 out of 10.

Is CVE-2022-0198 known to be exploited?

2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XXE in Stanford Corenlp

CVE-2022-0198

corenlp is vulnerable to Improper Restriction of XML External Entity Reference

Vulnerability class: XXE (XML External Entity)

Published 2022-01-13 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.1 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.007 (52.9th percentile), scored 2026-10-02.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Stanford Corenlp
Stanfordnlp Stanfordnlp/corenlp — versions unspecified

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

Public proof-of-concept exploits

References

huntr.dev/bounties/3d7e70fe-dddd-4b79-af62-8e058c4d5763 (Exploit, Patch, Third Party Advisory, Issue Tracking)
github.com/stanfordnlp/corenlp/commit/1f52136321cfca68b991bd7870563d06cf96624d (Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2022-0198?: CVE-2022-0198 is a high-severity vulnerability in Stanford Corenlp, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.1/10. Published 2022-01-13.
How severe is CVE-2022-0198?: High severity. CVSS v3 base score is 7.1 out of 10.
Is CVE-2022-0198 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.