Deserialization in Mybatis

CVE-2020-26945

MyBatis before 3.5.6 mishandles deserialization of object streams.

Vulnerability class: Insecure Deserialization

EPSS: 0.018 (76.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2020-26945?
CVE-2020-26945 is a high-severity vulnerability in Mybatis, classified under Deserialization of Untrusted Data. CVSS score: 8.1/10. Published 2020-10-10.
How severe is CVE-2020-26945?
High severity. CVSS v3 base score is 8.1 out of 10.
Is CVE-2020-26945 known to be exploited?
17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.