VulnSocial

CVE-2026-77614Patch

LOWCVSS 8.8 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to versions 19.7 and 20.2, the default security configuration in etc/security/mh_default_org.xml accepts a client-selected JSESSIONID from the ;jsessionid= URL path parameter and does not replace it when the victim logs in. An unauthenticated attacker can send a crafted link to a victim whose browser has no active Opencast session cookie, wait for the victim to authenticate, and then reuse the known identifier as the victim's authenticated session. This can expose the victim's data and actions and can produce full administrative account takeover when the victim is an administrator. This issue is fixed in versions 19.7 and 20.2.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-384

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

STABLE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 1 signal
  • Peaked 1d ago at 1 mentions (2026-09-17); latest day: 1
  • 2 total mentions across 2 days

Deep dive

Activity timeline2 mentions / 2d
00111Mentions · 2026-09-17: 1Mentions · 2026-10-01: 1Patch / Workaround · 2026-09-17: 1Patch / Workaround · 2026-10-01: 1Technical Details · 2026-10-01: 109-1710-01
Signal classification1 categories
Patch
2100.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH: CVE-2026-77614 (CVSS 8.8) - Session fixation flaw in Opencast educational platform allows unauthenticated attackers to hijack admin sessions via crafted links. Patch to v19.7/20.2 immediately. #CVE #Vulnerability #PatchNow https://t.co/OHbEW7jGgY

    Post summary

    The tweet reports CVE-2026-77614, a session fixation flaw in Opencast with CVSS 8.8, and explicitly directs users to patch to v19.7/20.2. It provides technical vulnerability details but does not indicate active exploitation or provide exploit code.

    0000035
    144 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-77614 Opencast is a free, open-source platform to support the management of educational audio and video content. Prior to versions 19.7 and 20.2, the default security confi… https://www.cve.org/CVERecord?id=CVE-2026-77614

    Post summary

    The post describes a vulnerability in Opencast affecting versions prior to 19.7 and 20.2, indicating that upgrading to those versions is the remediation.

    000001.1K
    58.1K followersView on X

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