Panic in github.com/shamaton/msgpack/v2
Priority LOW 36CWE-400Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-400.
Summary
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01355 71st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed github.com/shamaton/msgpack/v2 (github.com/shamaton/msgpack/v2): 2.1.1github.com/shamaton/msgpack/v2 (Go): 2.1.1
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| github.com/shamaton/msgpack/v2 | github.com/shamaton/msgpack/v2 | before 2.1.1 | 2.1.1 | Patch available | CNA |
| — | github.com/shamaton/msgpack/v2 (Go) | before 2.1.1 | 2.1.1 | Patch available | GHSA-jr77-8gx4-h5qh |
- github.com/shamaton/msgpack/v2 Vendorgithub.com/shamaton/msgpack/v2 Affected before 2.1.1 Fixed in 2.1.1 Patch available CNA
- github.com/shamaton/msgpack/v2 (Go) Vendor— Affected before 2.1.1 Fixed in 2.1.1 Patch available GHSA-jr77-8gx4-h5qh
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:messagepack_project:messagepack:*:*:*:*:*:go:*:* | before 2.1.1 | Vulnerable | Messagepack Project |
- cpe:2.3:a:messagepack_project:messagepack:*:*:*:*:*:go:*:* Versions before 2.1.1 Vulnerable ·Messagepack Project
Remediation
- Fix · CNA github.com/shamaton/msgpack/v2 (github.com/shamaton/msgpack/v2) Fixed in 2.1.1
- Fix · GHSA-jr77-8gx4-h5qh github.com/shamaton/msgpack/v2 (Go) Fixed in 2.1.1 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-41719
- 2026-10-03 Alias added: GHSA-jr77-8gx4-h5qh
References
Sources
- CVE-2022-41719 · CVE Program
- CVE-2022-41719 · NVD
- FIRST EPSS
- GHSA-jr77-8gx4-h5qh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences