MyBatis before 3.5.6 mishandles deserialization of object streams.
Priority LOW 39CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Partial Red Hat: 1 fixed, 1 without a fix
Attack profile from CVSS 3.1 · NVD. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-502.
Summary
MyBatis before 3.5.6 mishandles deserialization of object streams.
Why it matters now
EPSS 0.0182 78th percentileScored 2026-11-07
Fix Partial org.mybatis:mybatis (Maven): 3.5.6Red Hat: 1 advisoryRed Hat: 1 fixed, 1 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | org.mybatis:mybatis (Maven) | before 3.5.6 | 3.5.6 | Patch available | GHSA-qq48-m4jx-xqh8 |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- org.mybatis:mybatis (Maven) Vendor— Affected before 3.5.6 Fixed in 3.5.6 Patch available GHSA-qq48-m4jx-xqh8
Remediation
- Fix · GHSA-qq48-m4jx-xqh8 org.mybatis:mybatis (Maven) Fixed in 3.5.6 Advisory →
Red Hat 1 advisory
- RHSA-2021:3140 Released 2021-08-11 · Red Hat rating ModerateRed Hat Fuse 7.9.0 release and security update
- Red Hat Fuse 7.9
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat JBoss Fuse 6 | Affected | No fix planned: Out of support scope |
| Red Hat Fuse 7.9 | Fixed | RHSA-2021:3140 |
Not affected: 1 product
- Red Hat Integration Camel K 1
Timeline
- 2026-10-02 Threatist record created from CVE-2020-26945
- 2026-10-03 Alias added: GHSA-qq48-m4jx-xqh8
References
More Mybatis vulnerabilities
- TI-2023-10708 A SQL injection vulnerability in Mybatis plus below 3.5.3.1 allows remote attackers to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2020-26945 · CVE Program
- CVE-2020-26945 · NVD
- FIRST EPSS
- GHSA-qq48-m4jx-xqh8 · GitHub Advisory Database · CC BY 4.0
- CVE-2020-26945 · Red Hat security data · CC BY 4.0
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