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Privilege Escalation in Apache DolphinScheduler /access-tokens Endpoint

IdentifiersCVE-2026-49050CWE-639

CVE-2026-49050 is a privilege-escalation vulnerability in Apache DolphinScheduler affecting the dolphinscheduler-api component (org.apache.dolphinscheduler:dolphinscheduler-api) before version 3.4.2. According to the provided disclosure, a general user can mint administrator access tokens via the /access-tokens endpoint. This indicates an authorization flaw in token creation logic whereby a low-privileged authenticated user is able to obtain credentials associated with a higher-privileged administrative account or role. The issue is fixed in Apache DolphinScheduler 3.4.2.

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ANALYST BRIEF

Impact, mitigation & remediation

What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.

Impact

What an attacker gets, and what they’ve been doing with it.

Successful exploitation allows a non-administrative user to obtain administrator-level access tokens. This can result in full privilege escalation within the affected Apache DolphinScheduler environment, enabling unauthorized administrative actions through the API and any functionality gated by admin privileges. Depending on deployment and role capabilities, this may permit takeover of scheduler administration functions, modification of workflows or system settings, access to restricted data, and broader compromise of the application environment.

Mitigation

If you can’t patch tonight, do this now.

If immediate upgrade is not possible, restrict access to the /access-tokens endpoint to trusted administrative users only through application-layer authorization controls, reverse proxy policy, or API gateway enforcement. Review and revoke suspicious or unnecessary administrator access tokens, monitor for token creation events originating from non-administrative accounts, and audit recent administrative actions for abuse. Reducing exposure of the API to untrusted users and enforcing least privilege may reduce exploitation risk until patching is completed.

Remediation

Patch, then assume compromise.

Upgrade Apache DolphinScheduler to version 3.4.2 or later. Apache has stated that version 3.4.2 fixes CVE-2026-49050. Organizations should prioritize updating all affected deployments of the dolphinscheduler-api component and validate that token issuance and role-based access controls behave as expected after the upgrade.

PUBLIC EXPLOITS

Exploits

No public exploits tracked yet. Mallory keeps watching.

VALID 0 / 0 TOTALView more in app

No public exploit code observed for this vulnerability.

ACTIVITY FEED

Recent activity

2 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

2 SOURCESView more in app

No news coverage yet. Advisories and community discussion only.

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Exposure mapping

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Threat actor evidence

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Detection signatures

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