CVE-2021-20190

HIGHNVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under NVD CVSS v3. EPSS exploit probability: 7.5%, 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
8.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 7%CVSS: 8.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in jackson-databind before 2.9.10.7. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.

CVSS v3
8.1
EG Score
8.1(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity81% × 45%
Exploitation7% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
7%
EPSS %ILE
94%
KEV
Not listed

Published

January 19, 2021

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated Jul 24, 2026
Patch available. Sources: redhat.
generic Patch Available

[SECURITY] [DLA 2638-1] jackson-databind security update

https://lists.debian.org/debian-lts-announce/2021/04/msg00025.html
generic
https://lists.apache.org/thread.html/r380e9257bacb8551ee6fcf2c59890ae9477b2c78e553fa9ea08e9d9a%40%3Ccommits.nifi.apache.org%3E
generic

Block one more gadget type (javax.swing, CVE-2020-20190) · Issue #2854 · FasterXML/jackson-databind · GitHub

https://github.com/FasterXML/jackson-databind/issues/2854
redhat Patch Available

1916633 – (CVE-2021-20190) CVE-2021-20190 jackson-databind: mishandles the interaction between serialization gadgets and typing, related to javax.swing

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=1916633
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20210219-0008/

Vendor Advisories for CVE-2021-20190(2)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift-logging/elasticsearch6-rhel8:v5.0.3-12021-05-06redhat
redhatopenshift4/ose-logging-elasticsearch6:v4.6.0-202104161407.p02021-04-27redhat

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

(6 across 6 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
jackson-databind—2.12.1-1—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
jackson-databind—2.12.1-1—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
jackson-databind—2.12.1-1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
jackson-databind—2.12.1-1—
Debian:9(1)
PackageVulnerable rangeFixed inDependents
jackson-databind2.8.6-1 ... 2.8.6-1+deb9u8 (9 versions)2.8.6-1+deb9u9—
Maven(1)
PackageVulnerable rangeFixed inDependents
com.fasterxml.jackson.core:jackson-databind2.0.0 ... 2.6.7.4 (66 versions)2.6.7.5—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 29× 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 157 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2021-20190?
CVE-2021-20190 is a high vulnerability published on January 19, 2021. A flaw was found in jackson-databind before 2.9.10.7. FasterXML mishandles the interaction between serialization gadgets and typing. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
When was CVE-2021-20190 disclosed?
CVE-2021-20190 was first published in the National Vulnerability Database on January 19, 2021, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2021-20190 actively exploited?
CVE-2021-20190 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 5.8% of all scored CVEs.
What is the CVSS score of CVE-2021-20190?
CVE-2021-20190 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2021-20190?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-20190, 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

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