logback serialization vulnerability
A serialization vulnerability in logback receiver component part of logback allows an attacker to mount a Denial-Of-Service attack by sending poisoned data.
This is only exploitable if logback receiver component is deployed. See https://logback.qos.ch/manual/receivers.html
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Java / Kotlin (Maven) | ch.qos.logback:logback-classic | >= 1.3.0, < 1.3.12, >= 1.4.0, < 1.4.12, < 1.2.13 | 1.3.12, 1.4.12, 1.2.13 |
| Java / Kotlin (Maven) | ch.qos.logback:logback-core | >= 1.3.0, < 1.3.12, >= 1.4.0, < 1.4.12, < 1.2.13 | 1.3.12, 1.4.12, 1.2.13 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2023-6378
- https://github.com/qos-ch/logback/issues/745#issuecomment-1836227158
- https://github.com/qos-ch/logback/commit/9c782b45be4abdafb7e17481e24e7354c2acd1eb
- https://github.com/qos-ch/logback/commit/b8eac23a9de9e05fb6d51160b3f46acd91af9731
- https://github.com/qos-ch/logback/commit/bb095154be011267b64e37a1d401546e7cc2b7c3
- https://github.com/qos-ch/logback
- https://logback.qos.ch/manual/receivers.html
- https://logback.qos.ch/news.html#1.2.13
- https://logback.qos.ch/news.html#1.3.12
- https://security.netapp.com/advisory/ntap-20241129-0012
- CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H- Weakness (CWE)
CWE-502- Platform
- Java / Kotlin (Maven)
- Package
ch.qos.logback:logback-classic, ch.qos.logback:logback-core- Disclosed
- 29.11.2023
- Updated
- 11.10.2026 13:20
Sources and licenses
OSV / GitHub Advisory Database - GHSA-vmq6-5m68-f53m - CC BY 4.0
Vulnerability history: ch.qos.logback:logback-core
All published vulnerabilities of this package (Java / Kotlin (Maven)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 10
- First → latest
- 06.2021 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- Critical 1
- High 2
- Medium 3
- Low 4
Disclosures per year
- 2021: 2
- 2022: 0
- 2023: 2
- 2024: 2
- 2025: 1
- 2026: 3
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logback serialization vulnerability this entry
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