CVE-2021-42583 json
Use of a Broken or Risky Cryptographic Algorithm in Max Mazurov Maddy
published 2021-12-28 4 y ago modified 2026-06-17 4 mo ago also GHSA-5r5w-h76p-m726 , GO-2022-0306 , EUVD-2022-0469
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 55%
- public exploits
- 0
- none known
Summary
A Broken or Risky Cryptographic Algorithm exists in Max Mazurov Maddy before 0.5.2, which is an unnecessary risk that may result in the exposure of sensitive information.
Patch / fix
- go github.com/foxcpp/maddy 0.5.2
- foxcpp maddy 0.5.2
Exploit prediction
0.75% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:P/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/foxcpp/maddy | <0.5.2 |
0.5.2 |
Classification
- Weakness
-
- CWE-327 Use of a Broken or Risky Cryptographic Algorithm
References
-
github.com
/foxcpp/maddy/blob/df40dce1284cd0fd0a9e8e7894029553d653d0a5/internal/auth/shadow/verify.go
web, third-party-advisory
-
github.com
/foxcpp/maddy/releases/tag/v0.5.2
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-42583
advisory
-
github.com
/foxcpp/maddy
package
-
github.com
/advisories/GHSA-5r5w-h76p-m726
advisory
Sources
- CVE List CVE-2021-42583
- GitHub Advisory GHSA-5r5w-h76p-m726
- NVD CVE-2021-42583
- OSV GO-2022-0306
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.