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.
CVE-2026-33896
“—” beside the score: it is equal to NVD's CVSS score.
This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.5% (41st percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
A fix is available — apply it.
- CVSS v3
- 9.1
- EG Score
- 9.1CRITICALmedium confidence
- EG Risk
- 57EG Risk 57/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity91% × 45%Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation40% × 40%EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.5%
- EPSS %ILE
- 41st
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.
- EG Severity
- 9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
- EG Likelihood
- 0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-22). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track* at medium mission impactTrack at low, Track* at medium and Attend at high mission impact.CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low, Track* at medium and Attend at high mission impact.
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
March 27, 2026
Last Modified
September 4, 2026
Advisory Details (9)
Auto-updated Sep 15, 2026Affected: Red Hat Enterprise Linux 10",
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-33896.jsonbasicConstraints bypass in certificate chain verification (RFC 5280 violation) · Advisory · digitalbazaar/forge · GitHub
https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj252452458 – (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=2452458CVE-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-2026-33896commit 2e492832fb25 (digitalbazaar/forge)
Fix landed in digitalbazaar/forge commit 2e492832fb25 — awaiting tagged release
https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90Vendor Advisories for CVE-2026-33896(6)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:86618Red Hat Product SecurityCritical
Red Hat Security Advisory: New container image: rhceph-9.2
- RHSA-2026:34342Red Hat Product SecurityCritical
Red Hat Security Advisory: Cluster Observability Operator 1.5.0
- RHSA-2026:24761Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat Ansible Automation Platform 2.5 Product Security and Bug Fix Update
- CVE-2026-33896Microsoft Security Response Center (MSRC)High
Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)
- RHSA-2026:13826Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Developer Hub 1.9.4 release.
- RHSA-2026:9742Red Hat Product SecurityCritical
Red Hat Security Advisory: Red Hat Developer Hub 1.8.6 release.
Patch Availability(5)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rhceph/rhceph-9-rhel10:1790843527 | 2026-10-21 | redhat |
| redhat | cluster-observability-operator/logging-console-plugin-pf4-rhel9:1782839279 | 2026-07-01 | redhat |
| redhat | automation-gateway-0:2.5.20260422-3.el9ap | 2026-06-09 | redhat |
| redhat | rhdh/rhdh-hub-rhel9:1777903262 | 2026-05-05 | redhat |
| redhat | rhdh/rhdh-hub-rhel9:1776784286 | 2026-04-22 | 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)
npm(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| node-forge | — |
| — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 21× in last 7d / 54× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 98 of 273 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 2 repeat rows among the latest 100 are merged into the row they repeat. The 175 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-23 01:33 UTCEG score recompute
- 2026-10-23 01:33 UTCVendor advisory
- 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-22 03:10 UTCEG score recompute
- 2026-10-22 03:10 UTCVendor advisory
- 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-21 04:52 UTCEG score recompute
- 2026-10-21 04:52 UTCVendor advisory
- 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-20 06:35 UTCEG score recompute
- 2026-10-20 06:35 UTCVendor advisory
- 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-19 08:15 UTCEG score recompute
- 2026-10-19 08:15 UTCVendor advisory
- 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-18 09:49 UTCVendor advisory
- 2026-10-18 03:46 UTCEG score recompute
- 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-17 11:29 UTCEG score recompute
- 2026-10-17 11:29 UTCVendor advisory
- 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-16 13:11 UTCEG score recompute
- 2026-10-16 13:11 UTCVendor advisory
- 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
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- 2026-10-15 14:52 UTCEG score recompute
- 2026-10-15 14:52 UTCVendor advisory
- 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-14 09:21 UTCEG score recompute
- 2026-10-14 09:21 UTCVendor advisory
- 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-13 06:43 UTCEG score recompute
- 2026-10-13 06:43 UTCVendor advisory
- 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-12 16:13 UTCEG score recompute
- 2026-10-12 08:24 UTCVendor advisory
- 2026-10-11 19:55 UTCEG score recompute
- 2026-10-11 17:08 UTCEG score recompute
- 2026-10-11 14:35 UTCEG score recompute
- 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
- 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 40th percentile
- 2026-09-23 19:04 UTCOSV refresh
- 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-04 13:30 UTCVendor advisory
- 2026-09-04 12:25 UTCEG score recompute
- 2026-09-04 12:25 UTCVendor advisory
- 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-31 13:37 UTCVendor advisory
- 2026-08-31 12:31 UTCEG score recompute
- 2026-08-31 12:31 UTCVendor advisory
- 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 28th percentile
- 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-16 09:56 UTCEG score recompute
- 2026-08-16 09:56 UTCVendor advisory
- 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 27th percentile
- 2026-08-14 23:32 UTCVendor advisory
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownnpm:node-forge
Same vendor
10 shownredhat:RHSA-2026:13826
Frequently asked(5)
What is CVE-2026-33896?
When was the CVE record for CVE-2026-33896 published?
Is CVE-2026-33896 actively exploited?
What is the CVSS score of CVE-2026-33896?
How do I remediate CVE-2026-33896?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-33896
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