CVE-2026-46495

CRITICALPre-NVD 9.29.2—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 1.1%, top 35% 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, secondary
9.2EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.1%CVSS: 9.2Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive jmx.remote.rmi.server.credentials.filter.pattern, and RmiAuthenticator.authenticate in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiAuthenticator.java accepts an unconstrained Object array rather than a two-element String[]. When the JMX Connection Handler is enabled and its TCP listener is reachable, an unauthenticated remote attacker can submit a crafted serialized Java object and achieve code execution in the OpenDJ server process. The handler is disabled by default, and successful exploitation depends on the runtime classpath and Java version; remote code execution was demonstrated against OpenDJ 4.4.15 on JDK 11 with Jackson 2.12.6.1. This issue is fixed in 5.1.1.

CVSS v3
9.2
EG Score
9.2CRITICALmedium confidence
EG Risk
42
EG Risk 42/100

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
Severity92% × 45%
Exploitation1% × 40%
Automatability0% × 15%
EPSS PROB
1.1%
EPSS %ILE
65th
KEV
Not listed

Published

June 22, 2026

Last Modified

September 25, 2026

Advisory Details (5)

Auto-updated Sep 15, 2026
Patch available. Sources: github_release, github, github_commit, github_pr.
githubMentions a patch (unverified)

OpenDJ Unauthenticated RCE via Java Deserialization in JMX RMI · Advisory · OpenIdentityPlatform/OpenDJ · GitHub

Affected: version 5.1.1.

https://github.com/OpenIdentityPlatform/OpenDJ/security/advisories/GHSA-43x2-g84q-fmqx
github_release Patch Available

5.1.1

Patch available: OpenIdentityPlatform/OpenDJ 5.1.1

https://github.com/OpenIdentityPlatform/OpenDJ/releases/tag/5.1.1
github_pr

Fix JMX RMI connector startup failure introduced by CVE-2026-46495 hardening

Fix merged in OpenIdentityPlatform/OpenDJ PR #651 on 2026-06-11 — awaiting tagged release

https://github.com/OpenIdentityPlatform/OpenDJ/pull/651
github_commit

commit d4a95c2e37c3 (OpenIdentityPlatform/OpenDJ)

Fix landed in OpenIdentityPlatform/OpenDJ commit d4a95c2e37c3 — awaiting tagged release

https://github.com/OpenIdentityPlatform/OpenDJ/commit/d4a95c2e37c375756f9829c7ec43a4785b99e2e2
github_commit

commit 7e3a75903159 (OpenIdentityPlatform/OpenDJ)

Fix landed in OpenIdentityPlatform/OpenDJ commit 7e3a75903159 — awaiting tagged release

https://github.com/OpenIdentityPlatform/OpenDJ/commit/7e3a75903159153c877daeb2952a552701e38044

Vendor Advisories for CVE-2026-46495(1)

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

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFix by version rangeDependents
org.openidentityplatform.opendj:opendj-server-legacy4.10.0 ... 5.1.0 (41 versions)
  • every version up to 5.1.1: fixed in 5.1.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 25× 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.

  1. 2026-10-10 20:00 UTCEPSS rescore
  2. 2026-10-09 20:07 UTCEPSS rescore
  3. 2026-10-08 17:12 UTCEPSS rescore
  4. 2026-10-07 23:48 UTCEPSS rescore
  5. 2026-10-06 15:18 UTCEPSS rescore
  6. 2026-10-05 17:43 UTCEPSS rescore
  7. 2026-10-04 23:22 UTCEPSS rescore
  8. 2026-10-03 14:25 UTCEPSS rescore
  9. 2026-10-01 19:50 UTCEPSS rescore
  10. 2026-09-30 15:03 UTCEPSS rescore
  11. 2026-09-28 13:51 UTCEPSS rescore
  12. 2026-09-27 13:48 UTCEPSS rescore
  13. 2026-09-26 15:59 UTCEPSS rescore
  14. 2026-09-26 00:27 UTCEPSS rescore
  15. 2026-09-25 14:42 UTCEG score recompute
  16. 2026-09-23 17:53 UTCEPSS rescore
  17. 2026-09-20 20:15 UTCEPSS rescore
  18. 2026-09-18 19:28 UTCEPSS rescore
  19. 2026-09-18 11:14 UTCEG score recompute
  20. 2026-09-17 19:31 UTCEPSS rescore
  21. 2026-09-16 14:08 UTCEPSS rescore
  22. 2026-09-15 15:35 UTCEG score recompute
  23. 2026-09-15 15:02 UTCEG score recompute
  24. 2026-09-15 14:18 UTCEG score recompute▲ 9.20
  25. 2026-09-15 14:18 UTCMITRE cvelistV5CVSS v3 → 9.2 · CVSS v4 → 9.2
Show 4 more
  1. 2026-08-01 13:12 UTCEG score recompute
  2. 2026-07-26 15:58 UTCEG score recompute
  3. 2026-07-23 03:17 UTCEG score recompute
  4. 2026-06-22 21:39 UTCEG score recompute

Related CVEs(same product + same CWE)

Same product

2 shown

Maven:org.openidentityplatform.opendj:opendj-server-legacy

Frequently asked(5)

What is CVE-2026-46495?
CVE-2026-46495 is a critical vulnerability published on June 22, 2026. OpenDJ is an LDAPv3 compliant directory service. Prior to 5.1.1, the JMX RMI connector in opendj-server-legacy/src/main/java/org/opends/server/protocols/jmx/RmiConnector.java processes attacker-controlled credential objects before authentication without a restrictive…
When was CVE-2026-46495 disclosed?
CVE-2026-46495 was first published on June 22, 2026, with the most recent update on September 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-46495 actively exploited?
CVE-2026-46495 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.1% probability of exploitation in the next 30 days (65th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-46495?
CVE-2026-46495 has a CVSS base score of 9.2 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-46495?
A fix for CVE-2026-46495 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-46495 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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