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Advisory record · GHSA-hcxx-mp6g-6gr9

Opencast publishes global system account credentials

CVSS 7.5 HighEPSS 0.0083 · 58th percentile

Published by the GitHub Advisory Database at 14 Dec 2021, 21:43 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.opencastproject:opencast-commonMaven<10.610.6
Identifiers
GHSA-hcxx-mp6g-6gr9 · CVE-2018-16153
Weakness (CWE)
CWE-200 · CWE-522
Tags
Published
14 Dec 2021
Updated
10 Sept 2026

Machine-written summary

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

Opencast versions before 10.6 (org.opencastproject:opencast-common) send the global system user's credentials to any external service listed in a media package when accessing its files, whether or not that service belongs to the Opencast cluster. An attacker who can supply a media package with a malicious external file location could capture those credentials, though earlier mitigations already blocked cleartext authentication. Upgrade to Opencast 10.6, which only authenticates against servers in the Opencast cluster. No workaround is available.

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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N GitHub Advisory Database
  • CISA KEV Not listed.
  • EPSS 0.0083, the 58th percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 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.