jsoup is a Java library for working with HTML. Those using jsoup versions prior to 1.14.2 to parse untrusted HTML or XML may be vulnerable to DOS attacks. If the parser is run on user supplied input, an attacker may supply content that causes the parser to get stuck (loop indefinitely until cancelled), to complete more slowly than usual, or to throw an unexpected exception. This effect may support a denial of service attack. The issue is patched in version 1.14.2. There are a few available workarounds. Users may rate limit input parsing, limit the size of inputs based on system resources, and/or implement thread watchdogs to cap and timeout parse runtimes.
CVE-2021-37714
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 4.4%, top 11% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 93.3%
- KEV
- Not listed
Published
August 18, 2021
Last Modified
November 21, 2024
References (28)
- security-advisories@githubhttps://github.com/jhy/jsoup/security/advisories/GHSA-m72m-mhq2-9p6c
- security-advisories@githubhttps://jsoup.org/news/release-1.14.1
- security-advisories@githubhttps://jsoup.org/news/release-1.14.2
- security-advisories@githubhttps://lists.apache.org/thread.html/r215009dbf7467a9f6506d0c0024cb36cad30071010e62c9352cfaaf0%40%3Cissues.maven.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r377b93d79817ce649e9e68b3456e6f499747ef1643fa987b342e082e%40%3Cissues.maven.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r3d71f18adb78e50f626dde689161ca63d3b7491bd9718fcddfaecba7%40%3Cissues.maven.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r50e9c9466c592ca9d707a5dea549524d19e3287da08d8392f643960e%40%3Cissues.maven.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r685c5235235ad0c26e86d0ee987fb802c9675de6081dbf0516464e0b%40%3Cnotifications.james.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/r97404676a5cf591988faedb887d64e278f522adcaa823d89ca69defe%40%3Cnotifications.james.apache.org%3E
- security-advisories@githubhttps://lists.apache.org/thread.html/rc3354080fc67fb50b45b3c2d12dc4ca2a3c1c78dad3d3ba012c038aa%40%3Cnotifications.james.apache.org%3E
- security-advisories@githubhttps://security.netapp.com/advisory/ntap-20220210-0022/
- security-advisories@githubhttps://www.oracle.com/security-alerts/cpuapr2022.html
- security-advisories@githubhttps://www.oracle.com/security-alerts/cpujan2022.html
- security-advisories@githubhttps://www.oracle.com/security-alerts/cpujul2022.html
- af854a3a-2127-422b-91ae-364da2661108https://github.com/jhy/jsoup/security/advisories/GHSA-m72m-mhq2-9p6c
Vendor Advisories for CVE-2021-37714(2)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(8)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | eap7-xml-security-0:2.0.10-2.redhat_00002.1.ep7.el7 | 2025-04-28 | redhat |
| redhat | jsoup | 2022-09-09 | redhat |
| redhat | patch | 2022-07-19 | redhat |
| redhat | eap7-xml-security-0:2.1.7-1.redhat_00001.1.el8eap | 2021-12-15 | redhat |
| redhat | eap7-xml-security-0:2.1.7-1.redhat_00001.1.el7eap | 2021-12-15 | redhat |
| redhat | eap7-xml-security-0:2.1.7-1.redhat_00001.1.el6eap | 2021-12-15 | redhat |
| redhat | eap7-jsoup-0:1.14.2-1.redhat_00002.1.el7eap | 2021-11-15 | redhat |
| redhat | eap7-jsoup-0:1.14.2-1.redhat_00002.1.el8eap | 2021-11-15 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.jsoup:jsoup | 0.2.1b ... 1.9.2 (35 versions) | 1.14.2 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Additional Vendor Advisories
(14)
Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.
- Microsoft MSRCCVE-2021-377142025-10-02
Crafted input may cause the jsoup HTML and XML parser to get stuck, timeout, or throw unchecked exceptions
- Red HatRHSA-2021:4676MODERATE2021-08-18
RHSA-2021:4676 — Moderate
- Red HatRHSA-2021:4677MODERATE2021-08-18
RHSA-2021:4677 — Moderate
- Red HatRHSA-2021:4679MODERATE2021-08-18
RHSA-2021:4679 — Moderate
- Red HatRHSA-2021:5149MODERATE2021-08-18
RHSA-2021:5149 — Moderate
- Red HatRHSA-2021:5150MODERATE2021-08-18
RHSA-2021:5150 — Moderate
- Red HatRHSA-2021:5151MODERATE2021-08-18
RHSA-2021:5151 — Moderate
- Red HatRHSA-2021:5154MODERATE2021-08-18
RHSA-2021:5154 — Moderate
- Red HatRHSA-2021:5170MODERATE2021-08-18
RHSA-2021:5170 — Moderate
- Red HatRHSA-2022:0146MODERATE2021-08-18
RHSA-2022:0146 — Moderate
- Red HatRHSA-2022:0589MODERATE2021-08-18
RHSA-2022:0589 — Moderate
- Red HatRHSA-2022:5606MODERATE2021-08-18
RHSA-2022:5606 — Moderate
- Red HatRHSA-2022:5903MODERATE2021-08-18
RHSA-2022:5903 — Moderate
- Red HatRHSA-2022:6407MODERATE2021-08-18
RHSA-2022:6407 — Moderate
Data Freshness Timeline
(refreshed 9× in last 7d / 41× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-11 08:25 UTCEPSS rescore
- 2026-07-09 19:07 UTCEPSS rescore
- 2026-07-08 15:12 UTCEPSS rescore
- 2026-07-07 13:43 UTCEPSS rescore
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- 2026-07-04 06:29 UTCEPSS rescore
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- 2026-07-01 15:04 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 23:20 UTCEPSS rescore
- 2026-06-30 18:30 UTCOSV refresh
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-28 04:54 UTCEPSS rescore
- 2026-06-27 03:06 UTCEPSS rescore
- 2026-06-25 13:48 UTCEPSS rescore
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- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-23 21:31 UTCEPSS rescore
- 2026-06-21 14:55 UTCEPSS rescore
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- 2026-06-21 01:58 UTCEPSS rescore
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- 2026-06-19 19:24 UTCEPSS rescore
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- 2026-06-18 17:51 UTCEPSS rescore
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- 2026-06-17 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-16 17:51 UTCEPSS rescore
- 2026-06-15 17:46 UTCEPSS rescore
- 2026-06-14 23:15 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-13 22:58 UTCEPSS rescore
- 2026-06-13 00:08 UTCOSV refresh
- 2026-06-12 23:10 UTCEPSS rescore
- 2026-06-12 23:10 UTCEPSS rescore
- 2026-06-11 13:58 UTCEPSS rescore
- 2026-06-10 22:16 UTCEPSS rescore
- 2026-06-10 13:20 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-07 15:23 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-06 13:46 UTCEPSS rescore
- 2026-06-05 22:45 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-05 06:09 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-04 13:10 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-02 20:11 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-06-01 13:50 UTCEPSS rescore
- 2026-05-31 22:29 UTCEPSS rescore
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- 2026-05-31 00:15 UTCEPSS rescore
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- 2026-05-29 13:42 UTCEPSS rescore
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- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-28 13:43 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-27 13:39 UTCEPSS rescore
- 2026-05-26 13:42 UTCEPSS rescore
- 2026-05-26 11:50 UTCEG score recompute
- 2026-05-26 11:50 UTCVendor advisory
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
- 2026-05-26 07:17 UTCEPSS rescore
Frequently asked(5)
What is CVE-2021-37714?
When was CVE-2021-37714 disclosed?
Is CVE-2021-37714 actively exploited?
What is the CVSS score of CVE-2021-37714?
How do I remediate CVE-2021-37714?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-37714
Is Your Infrastructure Affected by CVE-2021-37714?
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