CVE-2026-33896

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.3%, top 72% 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
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 9.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain() does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions. This allows any leaf certificate (without these extensions) to act as a CA and sign other certificates, which node-forge will accept as valid. Version 1.4.0 patches the issue.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

March 27, 2026

Last Modified

September 4, 2026

Advisory Details (9)

Auto-updated Aug 29, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github, redhat.
redhat

Affected: Red Hat Enterprise Linux 10",

https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33896.json
github Patch Available🟡 PoC Available

basicConstraints bypass in certificate chain verification (RFC 5280 violation) · Advisory · digitalbazaar/forge · GitHub

https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25
redhat Patch Available

2452458 – (CVE-2026-33896) CVE-2026-33896 node-forge: Forge (node-forge): Certificate validation bypass allows unauthorized certificate issuance

https://bugzilla.redhat.com/show_bug.cgi?id=2452458
redhat Patch Available

CVE-2026-33896 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-33896
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:9742
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:34342
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:24761
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:13826
github_commit

commit 2e492832fb25 (digitalbazaar/forge)

Fix landed in digitalbazaar/forge commit 2e492832fb25 — awaiting tagged release

https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90

Vendor Advisories for CVE-2026-33896(5)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatcluster-observability-operator/logging-console-plugin-pf4-rhel9:17828392792026-07-01redhat
redhatautomation-gateway-0:2.5.20260422-3.el9ap2026-06-09redhat
redhatrhdh/rhdh-hub-rhel9:17779032622026-05-05redhat
redhatrhdh/rhdh-hub-rhel9:17767842862026-04-22redhat

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)
npm(1)
PackageVulnerable rangeFixed inDependents
node-forge—1.4.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 68× 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 205 total refreshes for this CVE.

  1. 2026-09-04 13:30 UTCVendor advisory
  2. 2026-09-04 12:25 UTCEG score recompute
  3. 2026-09-04 12:25 UTCVendor advisory
  4. 2026-09-04 05:06 UTCEPSS rescore
  5. 2026-09-02 14:12 UTCEPSS rescore
  6. 2026-09-01 13:53 UTCEPSS rescore
  7. 2026-09-01 04:39 UTCEPSS rescore
  8. 2026-08-31 13:37 UTCVendor advisory
  9. 2026-08-31 12:31 UTCEG score recompute
  10. 2026-08-31 12:31 UTCVendor advisory
  11. 2026-08-30 19:17 UTCEPSS rescore
  12. 2026-08-30 01:22 UTCEPSS rescore
  13. 2026-08-28 21:41 UTCEPSS rescore
  14. 2026-08-27 14:25 UTCEPSS rescore
  15. 2026-08-26 14:46 UTCEPSS rescore
  16. 2026-08-25 13:49 UTCEPSS rescore
  17. 2026-08-24 14:17 UTCEPSS rescore
  18. 2026-08-23 00:19 UTCEPSS rescore
  19. 2026-08-21 23:49 UTCEPSS rescore
  20. 2026-08-20 22:55 UTCEPSS rescore
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-19 17:03 UTCEPSS rescore
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 14:56 UTCEPSS rescore
Show 75 more
  1. 2026-08-16 09:56 UTCEG score recompute
  2. 2026-08-16 09:56 UTCVendor advisory
  3. 2026-08-16 02:14 UTCEPSS rescore
  4. 2026-08-15 01:30 UTCEPSS rescore
  5. 2026-08-14 23:32 UTCVendor advisory
  6. 2026-08-14 19:13 UTCVendor advisory
  7. 2026-08-14 14:55 UTCVendor advisory
  8. 2026-08-14 10:36 UTCVendor advisory
  9. 2026-08-14 06:15 UTCEG score recompute
  10. 2026-08-14 06:15 UTCVendor advisory
  11. 2026-08-13 22:00 UTCEPSS rescore
  12. 2026-08-13 00:52 UTCVendor advisory
  13. 2026-08-12 20:34 UTCEG score recompute
  14. 2026-08-12 20:34 UTCVendor advisory
  15. 2026-08-12 13:50 UTCEPSS rescore
  16. 2026-08-12 01:09 UTCVendor advisory
  17. 2026-08-11 20:43 UTCEG score recompute
  18. 2026-08-11 20:43 UTCVendor advisory
  19. 2026-08-11 08:02 UTCVendor advisory
  20. 2026-08-11 03:44 UTCEG score recompute
  21. 2026-08-11 03:44 UTCVendor advisory
  22. 2026-08-11 00:00 UTCEPSS rescore
  23. 2026-08-10 12:00 UTCVendor advisory
  24. 2026-08-10 06:20 UTCVendor advisory
  25. 2026-08-10 02:00 UTCVendor advisory
  26. 2026-08-09 21:42 UTCVendor advisory
  27. 2026-08-09 17:23 UTCEG score recompute
  28. 2026-08-09 17:23 UTCVendor advisory
  29. 2026-08-09 13:46 UTCEPSS rescore
  30. 2026-08-09 13:04 UTCVendor advisory
  31. 2026-08-09 05:48 UTCEG score recompute
  32. 2026-08-09 05:48 UTCVendor advisory
  33. 2026-08-08 16:37 UTCEPSS rescore
  34. 2026-08-08 09:28 UTCVendor advisory
  35. 2026-08-08 05:10 UTCVendor advisory
  36. 2026-08-08 00:51 UTCVendor advisory
  37. 2026-08-07 20:33 UTCEG score recompute
  38. 2026-08-07 20:33 UTCVendor advisory
  39. 2026-08-07 16:15 UTCVendor advisory
  40. 2026-08-06 18:39 UTCEG score recompute
  41. 2026-08-06 18:39 UTCVendor advisory
  42. 2026-08-06 13:46 UTCEPSS rescore
  43. 2026-08-06 09:22 UTCVendor advisory
  44. 2026-08-06 05:03 UTCVendor advisory
  45. 2026-08-06 00:44 UTCEG score recompute
  46. 2026-08-06 00:44 UTCVendor advisory
  47. 2026-08-05 19:17 UTCEPSS rescore
  48. 2026-08-04 15:10 UTCEPSS rescore
  49. 2026-08-04 10:38 UTCEPSS rescore
  50. 2026-08-04 03:56 UTCVendor advisory
  51. 2026-08-03 23:06 UTCEG score recompute
  52. 2026-08-03 23:06 UTCVendor advisory
  53. 2026-08-03 10:36 UTCEPSS rescore
  54. 2026-08-02 23:46 UTCVendor advisory
  55. 2026-08-02 19:28 UTCVendor advisory
  56. 2026-08-02 15:09 UTCEG score recompute
  57. 2026-08-02 15:09 UTCVendor advisory
  58. 2026-08-02 02:27 UTCEPSS rescore
  59. 2026-08-01 04:16 UTCEPSS rescore
  60. 2026-07-30 16:28 UTCEPSS rescore
  61. 2026-07-30 01:30 UTCEPSS rescore
  62. 2026-07-27 14:13 UTCEPSS rescore
  63. 2026-07-26 14:54 UTCEPSS rescore
  64. 2026-07-26 14:54 UTCEPSS rescore
  65. 2026-07-25 14:18 UTCEPSS rescore
  66. 2026-07-25 14:18 UTCEPSS rescore
  67. 2026-07-24 14:17 UTCEPSS rescore
  68. 2026-07-24 14:17 UTCEPSS rescore
  69. 2026-07-23 14:18 UTCEPSS rescore
  70. 2026-07-23 14:18 UTCEPSS rescore
  71. 2026-07-23 03:09 UTCEG score recompute▲ 1.70
  72. 2026-07-22 14:08 UTCEPSS rescore
  73. 2026-07-21 15:24 UTCEPSS rescore
  74. 2026-07-20 17:08 UTCEPSS rescore
  75. 2026-07-19 14:31 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-33896?
CVE-2026-33896 is a critical vulnerability published on March 27, 2026. Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, pki.verifyCertificateChain() does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the basicConstraints and keyUsage extensions.…
When was CVE-2026-33896 disclosed?
CVE-2026-33896 was first published in the National Vulnerability Database on March 27, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33896 actively exploited?
CVE-2026-33896 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 72.3% of all scored CVEs.
What is the CVSS score of CVE-2026-33896?
CVE-2026-33896 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-33896?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33896, 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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