CVE-2021-40690

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 7.4%, top 6% 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).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

All versions of Apache Santuario - XML Security for Java prior to 2.2.3 and 2.1.7 are vulnerable to an issue where the "secureValidation" property is not passed correctly when creating a KeyInfo from a KeyInfoReference element. This allows an attacker to abuse an XPath Transform to extract any local .xml files in a RetrievalMethod element.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
41(Track)
EG Risk 41/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation7% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

September 19, 2021

Last Modified

August 25, 2026

Advisory Details (10)

Auto-updated Aug 25, 2026
Patch available.
generic Patch Available

[SECURITY] [DLA 2767-1] libxml-security-java security update

https://lists.debian.org/debian-lts-announce/2021/09/msg00015.html
generic
https://lists.apache.org/thread.html/re294cfc61f509512874ea514d8d64fd276253d54ac378ffa7a4880c8%40%3Ccommits.tomee.apache.org%3E
generic
https://lists.apache.org/thread.html/rbdac116aef912b563da54f4c152222c0754e32fb2f785519ac5e059f%40%3Ccommits.tomee.apache.org%3E
generic
https://lists.apache.org/thread.html/rbbbac0759b12472abd0c278d32b5e0867bb21934df8e14e5e641597c%40%3Ccommits.tomee.apache.org%3E
generic
https://lists.apache.org/thread.html/raf352f95c19c0c4051af3180752cb69acbea88d0d066ab176c6170e8%40%3Cuser.poi.apache.org%3E
generic
https://lists.apache.org/thread.html/r9c100d53c84d54cf71975e3f0cfcc2856a8846554a04c99390156ce4%40%3Ccommits.tomee.apache.org%3E
generic
https://lists.apache.org/thread.html/r8a5c0ce9014bd07303aec1e5eed55951704878016465d3dae00e0c28%40%3Ccommits.tomee.apache.org%3E
generic
https://lists.apache.org/thread.html/r8848751b6a5dd78cc9e99d627e74fecfaffdfa1bb615dce827aad633%40%3Cdev.santuario.apache.org%3E
generic
https://lists.apache.org/thread.html/r401ecb7274794f040cd757b259ebe3e8c463ae74f7961209ccad3c59%40%3Cissues.cxf.apache.org%3E
generic
https://lists.apache.org/thread.html/r3b3f5ba9b0de8c9c125077b71af06026d344a709a8ba67db81ee9faa%40%3Ccommits.tomee.apache.org%3E

Vendor Advisories for CVE-2021-40690(15)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(13)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibxml-security-java (2.0.10-2+deb11u1build0.20.04.1) @ focal2026-08-25ubuntu
redhateap7-xml-security-0:2.0.10-2.redhat_00002.1.ep7.el72025-04-28redhat
redhatcamel-quarkus-xmlsecurity2022-09-09redhat
redhatxmlsec2022-07-07redhat
redhatpatch2022-03-22redhat
redhatrh-sso-7/sso75-openshift-rhel8:7.5-152022-01-18redhat
redhatpatch2022-01-17redhat
redhatrh-sso7-keycloak-0:15.0.4-1.redhat_00001.1.el7sso2022-01-17redhat
redhatrh-sso7-keycloak-0:15.0.4-1.redhat_00001.1.el8sso2022-01-17redhat
redhateap7-xml-security-0:2.1.7-1.redhat_00001.1.el6eap2021-12-15redhat
redhateap7-xml-security-0:2.1.7-1.redhat_00001.1.el7eap2021-12-15redhat
redhateap7-xml-security-0:2.1.7-1.redhat_00001.1.el8eap2021-12-15redhat
redhatorg.apache.santuario/xmlsec:2.1.7.redhat-000012021-11-15redhat

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

(7 across 7 ecosystems)
Debian:10(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java2.0.10-22.0.10-2+deb10u1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java2.0.10-22.0.10-2+deb11u1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java—2.1.7-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java—2.1.7-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java—2.1.7-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
libxml-security-java1.5.8-21.5.8-2+deb9u1—
Maven(1)
PackageVulnerable rangeFixed inDependents
org.apache.santuario:xmlsec1.4.0 ... 2.1.6 (38 versions)2.1.7—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(2)

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.

Data Freshness Timeline

(refreshed 7× in last 7d / 33× 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.

Showing the most recent 100 of 154 total refreshes for this CVE.

  1. 2026-09-07 15:58 UTCEPSS rescore
  2. 2026-09-06 13:45 UTCEPSS rescore
  3. 2026-09-05 15:25 UTCEPSS rescore
  4. 2026-09-04 13:57 UTCEPSS rescore
  5. 2026-09-04 05:03 UTCEPSS rescore
  6. 2026-09-02 14:09 UTCEPSS rescore
  7. 2026-09-01 13:50 UTCEPSS rescore
  8. 2026-09-01 03:33 UTCEPSS rescore
  9. 2026-08-30 19:14 UTCEPSS rescore
  10. 2026-08-30 19:14 UTCEPSS rescore
  11. 2026-08-30 01:19 UTCEPSS rescore
  12. 2026-08-28 21:37 UTCEPSS rescore
  13. 2026-08-27 14:22 UTCEPSS rescore
  14. 2026-08-26 14:43 UTCEPSS rescore
  15. 2026-08-25 16:34 UTCEG score recompute
  16. 2026-08-25 16:34 UTCVendor advisory
  17. 2026-08-25 13:46 UTCEPSS rescore
  18. 2026-08-24 14:13 UTCEPSS rescore
  19. 2026-08-23 00:16 UTCEPSS rescore
  20. 2026-08-21 23:46 UTCEPSS rescore
  21. 2026-08-20 22:52 UTCEPSS rescore
  22. 2026-08-20 22:52 UTCEPSS rescore
  23. 2026-08-19 18:28 UTCOSV refresh
  24. 2026-08-19 17:01 UTCEPSS rescore
  25. 2026-08-18 13:45 UTCEPSS rescore
Show 75 more
  1. 2026-08-17 13:44 UTCEPSS rescore
  2. 2026-08-16 14:53 UTCEPSS rescore
  3. 2026-08-16 02:11 UTCEPSS rescore
  4. 2026-08-15 01:27 UTCEPSS rescore
  5. 2026-08-13 21:57 UTCEPSS rescore
  6. 2026-08-12 13:48 UTCEPSS rescore
  7. 2026-08-11 13:38 UTCEPSS rescore
  8. 2026-08-09 13:44 UTCEPSS rescore
  9. 2026-08-08 16:33 UTCEPSS rescore
  10. 2026-08-07 16:24 UTCEPSS rescore
  11. 2026-08-06 13:44 UTCEPSS rescore
  12. 2026-08-05 19:14 UTCEPSS rescore
  13. 2026-08-04 13:59 UTCOSV refresh
  14. 2026-08-04 10:34 UTCEPSS rescore
  15. 2026-08-03 10:33 UTCEPSS rescore
  16. 2026-08-02 02:24 UTCEPSS rescore
  17. 2026-08-01 04:13 UTCEPSS rescore
  18. 2026-07-30 16:25 UTCEPSS rescore
  19. 2026-07-30 01:28 UTCEPSS rescore
  20. 2026-07-28 15:33 UTCEPSS rescore
  21. 2026-07-25 14:15 UTCEPSS rescore
  22. 2026-07-24 14:15 UTCEPSS rescore
  23. 2026-07-23 14:16 UTCEPSS rescore
  24. 2026-07-23 02:04 UTCEG score recompute
  25. 2026-07-22 22:50 UTCEG score recompute
  26. 2026-07-22 14:06 UTCEPSS rescore
  27. 2026-07-21 15:22 UTCEPSS rescore
  28. 2026-07-21 15:22 UTCEPSS rescore
  29. 2026-07-20 17:05 UTCEPSS rescore
  30. 2026-07-19 14:29 UTCEPSS rescore
  31. 2026-07-19 02:27 UTCEPSS rescore
  32. 2026-07-18 11:29 UTCOSV refresh
  33. 2026-07-18 10:02 UTCEPSS rescore
  34. 2026-07-18 10:02 UTCEPSS rescore
  35. 2026-07-16 17:00 UTCEPSS rescore
  36. 2026-07-16 17:00 UTCEPSS rescore
  37. 2026-07-15 16:55 UTCEPSS rescore
  38. 2026-07-15 16:55 UTCEPSS rescore
  39. 2026-07-15 01:58 UTCEPSS rescore
  40. 2026-07-13 22:27 UTCEPSS rescore
  41. 2026-07-13 22:27 UTCEPSS rescore
  42. 2026-07-13 06:11 UTCEPSS rescore
  43. 2026-07-13 06:11 UTCEPSS rescore
  44. 2026-07-12 05:44 UTCEPSS rescore
  45. 2026-07-11 08:25 UTCEPSS rescore
  46. 2026-07-11 08:25 UTCEPSS rescore
  47. 2026-07-09 19:07 UTCEPSS rescore
  48. 2026-07-08 15:12 UTCEPSS rescore
  49. 2026-07-07 13:43 UTCEPSS rescore
  50. 2026-07-06 16:25 UTCEPSS rescore
  51. 2026-07-06 16:25 UTCEPSS rescore
  52. 2026-07-06 02:21 UTCEPSS rescore
  53. 2026-07-06 02:21 UTCEPSS rescore
  54. 2026-07-05 02:28 UTCEPSS rescore
  55. 2026-07-05 02:28 UTCEPSS rescore
  56. 2026-07-04 06:29 UTCEPSS rescore
  57. 2026-07-04 06:29 UTCEPSS rescore
  58. 2026-07-02 16:57 UTCEPSS rescore
  59. 2026-07-01 15:04 UTCEPSS rescore
  60. 2026-06-30 23:20 UTCEPSS rescore
  61. 2026-06-30 23:20 UTCEPSS rescore
  62. 2026-06-30 13:30 UTCOSV refresh
  63. 2026-06-28 14:05 UTCEPSS rescore
  64. 2026-06-28 04:54 UTCEPSS rescore
  65. 2026-06-28 04:54 UTCEPSS rescore
  66. 2026-06-27 03:06 UTCEPSS rescore
  67. 2026-06-27 03:06 UTCEPSS rescore
  68. 2026-06-25 13:48 UTCEPSS rescore
  69. 2026-06-25 13:48 UTCEPSS rescore
  70. 2026-06-24 14:03 UTCEPSS rescore
  71. 2026-06-24 14:03 UTCEPSS rescore
  72. 2026-06-23 21:31 UTCEPSS rescore
  73. 2026-06-23 21:31 UTCEPSS rescore
  74. 2026-06-22 14:24 UTCEPSS rescore
  75. 2026-06-21 14:55 UTCEPSS rescore

Frequently asked(5)

What is CVE-2021-40690?
CVE-2021-40690 is a high vulnerability published on September 19, 2021. All versions of Apache Santuario - XML Security for Java prior to 2.2.3 and 2.1.7 are vulnerable to an issue where the "secureValidation" property is not passed correctly when creating a KeyInfo from a KeyInfoReference element. This allows an attacker to abuse an XPath Transform to extract any…
When was CVE-2021-40690 disclosed?
CVE-2021-40690 was first published in the National Vulnerability Database on September 19, 2021, with the most recent update on August 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-40690 actively exploited?
CVE-2021-40690 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 7% probability of exploitation in the next 30 days, which ranks it in the top 6.0% of all scored CVEs.
What is the CVSS score of CVE-2021-40690?
CVE-2021-40690 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2021-40690?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-40690, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2021-40690

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