OpenDJ unauthenticated SSRF, local file read and unbounded-read DoS in the DSMLv2 gateway

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

9.4 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:H

EPSS

No dated EPSS signal available.

As published by the source; long descriptions are shortened.

The DSMLv2 SOAP gateway (opendj-dsml-servlet) in OpenIdentityPlatform OpenDJ through 5.1.1 dereferences attacker-supplied xsd:anyURI values server-side without a scheme allowlist, egress filtering, or a size cap, and is reachable without authentication by default. A remote unauthenticated attacker can submit a DSML add/modify request whose value is a URI to (1) perform server-side request forgery against internal services and the cloud metadata endpoint (SSRF), (2) read local files via file: URIs, and (3) exhaust memory through an unbounded response read (DoS). Fixed in 5.1.2: anyURI dereferencing is disabled by default; when enabled it is limited to an http/https allowlist, rejects loopback/link-local/private/reserved targets, refuses HTTP redirects, and caps the bytes read. The gateway also now requires container-managed authentication by default.

Published by the source

24 Jul 2026, 21:46 UTC

Last modified by the source

24 Jul 2026, 21:46 UTC

Source last checked

26 Oct 2026, 16:54 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-68r5-9hpg-7qw9

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# Patch Next advisory brief: GHSA-68r5-9hpg-7qw9

Advisory: OpenDJ unauthenticated SSRF, local file read and unbounded-read DoS in the DSMLv2 gateway
IDs: GHSA-68r5-9hpg-7qw9
Record: https://patchnext.com/advisories/ghsa-68r5-9hpg-7qw9 (revision 1, source checked 26 Oct 2026, 16:54 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Critical (CVSS 9.4)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: org.openidentityplatform.opendj:opendj-dsml-servlet 5.1.2. A vendor fix does not mean a deployment is fixed.

## Affected components
- Maven org.openidentityplatform.opendj:opendj-dsml-servlet: affected <= 5.1.1; fixed in 5.1.2

## Suggested inspection (read-only)
- Maven org.openidentityplatform.opendj:opendj-dsml-servlet: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on org.openidentityplatform.opendj:opendj-dsml-servlet.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-68r5-9hpg-7qw9 (GitHub-reviewed advisory GHSA-68r5-9hpg-7qw9 lists affected ranges: Maven org.openidentityplatform.opendj:opendj-dsml-servlet >=0 <=5.1.1)

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