CVE-2025-55202: Opencast is a free, open-source platform to support the management of educational audio and video content

Q: How do I fix CVE-2025-55202?

opencast: upgrade to 17.7. Exact commands for each OS are on this page.

Q: Is CVE-2025-55202 being exploited?

CVE-2025-55202 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2025-55202 affect?

CVE-2025-55202 affects opencast. Severity is medium (CVSS 5.3). Opencast is a free, open-source platform to support the management of educational audio and video content. In version 18.0 and versions before 17.7, the protections against path traversal attacks in the UI config module are insufficient, st

Q: How urgent is CVE-2025-55202?

Priority 32/100. Remotely exploitable, no login, no user action

Routine

MEDIUM 5.3REMOTEUPGRADE

CVE-2025-55202 is a medium-severity flaw (CVSS 5.3) affecting opencast. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Opencast is a free, open-source platform to support the management of educational audio and video content. In version 18.0 and versions before 17.7, the protections against path traversal attacks in the UI config module are insufficient, still partially allowing for attacks in very specific cases. The path is checked without checking for the file separator. This could allow attackers access to files within another folder which starts with the sam

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-23
Published	2025-08-29
Last modified	2026-10-19

Publisher (CNA): GitHub, Inc. · Vendor: apereo

Last updated 2026-10-19 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-08-29 16:15 UTCPublished CVE record published
2026-10-19 17:10 UTCUpdated Record last modified

apereo opencast UPGRADE

Affected: < 17.7 · 18.0

Fixed in: 17.7

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy opencast || rpm -q opencast || opencast --version

2. UPGRADE to 17.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opencast

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opencast

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-55202?

opencast: upgrade to 17.7. Exact commands for each OS are on this page.

Is CVE-2025-55202 being exploited?

CVE-2025-55202 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-55202 affect?

CVE-2025-55202 affects opencast. Severity is medium (CVSS 5.3). Opencast is a free, open-source platform to support the management of educational audio and video content. In version 18.0 and versions before 17.7, the protections against path traversal attacks in the UI config module are insufficient, st

How urgent is CVE-2025-55202?

Priority 32/100. Remotely exploitable, no login, no user action

Related CVEs

CVE-2025-61906 MEDIUM 4.3 UPGRADE Opencast is a free, open-source platform to support the management of educational audio and video content
CVE-2025-61788 MEDIUM 5.4 UPGRADE Opencast is a free, open-source platform to support the management of educational audio and video content
CVE-2025-54380 MEDIUM 6.5 UPGRADE Opencast is a free, open-source platform to support the management of educational audio and video content
CVE-2024-52797 MEDIUM 6.5 UPGRADE Opencast is free and open source software for automated video capture and distribution

References

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