CVE-2020-27978

7.5 highEPSS 1.9%

High (7.5) in shibboleth identity provider. EPSS 1.9% chance of exploitation in the next 30 days.

Shibboleth Identify Provider 3.x before 3.4.6 has a denial of service flaw. A remote unauthenticated attacker can cause a login flow to trigger Java heap exhaustion due to the creation of objects in the Java Servlet container session.

Severity

CVSS 3.1

7.5 high

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

EPSS: 1.9% chance of exploitation in the next 30 days; higher than 79% of CVEs (scores of 2026-10-31)
CWE: CWE-770
Published: 2020-10-28
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

shibboleth:identity_provider

References

https://shibboleth.net/community/advisories/secadv_20191002.txt
https://shibboleth.net/community/advisories/secadv_20191002.txt

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