CVE-2022-41719 json
Panic in github.com/shamaton/msgpack/v2
published 2022-11-10 3 y ago modified 2026-06-17 4 mo ago also GHSA-jr77-8gx4-h5qh , GO-2022-0972 , EUVD-2022-7376
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.4%
- EPSS 1.4% chance of exploitation in 30 days, percentile 71%
- public exploits
- 0
- none known
Summary
Unmarshal can panic on some inputs, possibly allowing for denial of service attacks.
Patch / fix
- go github.com/shamaton/msgpack/v2 2.1.1
- github.com/shamaton/msgpack/v2 github.com/shamaton/msgpack/v2 2.1.1
- github.com/shamaton/msgpack#32 pull request
- github.com/shamaton/msgpack/releases/tag/v2.1.1 release
- github.com/shamaton/msgpack/issues/31 advisory
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 18 mo ago
Exploit prediction
1.35% chance of exploitation in the next 30 days, higher than 71% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- github.com https://github.com/shamaton/msgpack/issues/31 referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/shamaton/msgpack/v2 | <2.1.1 |
2.1.1 |
Affected products
- github.com/shamaton/msgpack/v2 github.com/shamaton/msgpack/v2
Classification
- Weakness
-
- CWE-400 Uncontrolled Resource Consumption
References
-
github.com
/shamaton/msgpack/pull/32
web, patch, third-party-advisory
-
github.com
/shamaton/msgpack/issues/31
web, exploit, issue-tracking, patch, third-party-advisory, report
-
pkg.go.dev
/vuln/GO-2022-0972
web, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2022-41719
advisory
-
github.com
/shamaton/msgpack
package
-
github.com
/shamaton/msgpack/releases/tag/v2.1.1
web
Sources
- CVE List CVE-2022-41719
- GitHub Advisory GHSA-jr77-8gx4-h5qh
- NVD CVE-2022-41719
- OSV GO-2022-0972
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.