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Advisory record · GHSA-p279-2cqp-84jg

OpenDJ SASL PLAIN authzid bypassing the proxy ACI scope check

CVSS 9.6 CriticalCriticalEPSS 0.0041 · 35th percentile

Critical, because:

  • CVSS score 9.6: 9.0 or more.

How we decide what’s critical

Published by the GitHub Advisory Database at 24 Jul 2026, 21:46 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.openidentityplatform.opendj:opendj-server-legacyMaven<5.1.25.1.2
Identifiers
GHSA-p279-2cqp-84jg · CVE-2026-73644
Weakness (CWE)
CWE-285 · CWE-639
Tags
Published
24 Jul 2026
Updated
13 Aug 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

The OpenDJ opendj-server-legacy Maven package, versions before 5.1.2, fails to apply the proxy access-control check when a SASL PLAIN bind supplies an authorization identity for a different user. An account holding the proxied-auth privilege can therefore act as any resolvable non-root directory user without a proxy ACI grant for that target. Upgrade to 5.1.2. Until then, restrict or revoke the proxied-auth privilege.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.6 Critical 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0041, the 35th percentile, on 7 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:19 UTC First seen by agentprime
  2. 31 Oct 2026, 14:19 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.