CVE-2022-41719
Panic in github.com/shamaton/msgpack/v2
CVE-2022-41719 is a high vulnerability (CVSS 7.5) in Github.com/shamaton/msgpack/v2, published November 10, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 1.35%, the 72nd percentile. Fixed in github.com/shamaton/msgpack/v2 2.1.1.
- Severity
- 7.5 HighCVSS 3.1, NVD
- Exploit chance
- 1.35%EPSS, 72nd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
2.1.1github.com/shamaton/msgpack/v2 +1 more
Description
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
github.com/shamaton/msgpack/v2Go | before 2.1.1 | 2.1.1 |
python-msgpackAzure Linux:3 | through 1.2.3-1 | None known |
What each source reports
NVD Score used
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
CVE-2022-41719- 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 - Updated
- 2026-11-02
CVE List
Panic in github.com/shamaton/msgpack/v2
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
CVE-2022-41719- 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 - Updated
- 2026-11-02
EUVDEUVD-2022-7376
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
EUVD-2022-7376- 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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-jr77-8gx4-h5qh
MessagePack for Golang subject to DoS via Unmarshal panic
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks. This issue has been patched in version 2.1.1.
- Record
GHSA-jr77-8gx4-h5qh- 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 - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVAZL-113003
CVE-2022-41719 affecting package python-msgpack 1.2.3-1
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
AZL-113003- 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 - Updated
- 2026-11-10
OSV
Panic in github.com/shamaton/msgpack/v2
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
CVE-2022-41719- 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 - Updated
- 2026-11-02
OSVGHSA-jr77-8gx4-h5qh
MessagePack for Golang subject to DoS via Unmarshal panic
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks. This issue has been patched in version 2.1.1.
- Record
GHSA-jr77-8gx4-h5qh- 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 - Weakness
- CWE-400
- Updated
- 2026-11-02
OSVGO-2022-0972No score
Panic in github.com/shamaton/msgpack/v2
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
- Record
GO-2022-0972- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, facts, references | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
github.com/shamaton/msgpack/issues/31
pkg.go.dev/vuln/GO-2022-0972
nvd.nist.gov/vuln/detail/CVE-2022-41719