CVE catalog
CVE-2021-29495
nim: CVE-2021-29495
- Severity
- High · CVSS 7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.49% · Oct 25, 2026
Nim is a statically typed compiled systems programming language. In Nim standard library before 1.4.2, httpClient SSL/TLS certificate verification was disabled by default. Users can upgrade to version 1.4.2 to receive a patch or, as a workaround, set "verifyMode = CVerifyPeer" as documented.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | nim | sid | 2.2.12-1 | fixed |
| Debian | nim | forky | 2.2.12-1 | fixed |
| Debian | nim | bookworm | 1.6.10-2 | fixed |
| Ubuntu | nim | 16.04 | 0.11.2+dfsg1-4 | vulnerable |
| Ubuntu | nim | 16.04 | 0.12.0-2 | vulnerable |
| Ubuntu | nim | 18.04 | 0.17.2-1ubuntu1 | vulnerable |
| Ubuntu | nim | 18.04 | 0.17.2-1ubuntu2 | vulnerable |
| Ubuntu | nim | 20.04 | 0.20.2-1 | vulnerable |
| Ubuntu | nim | 20.04 | 1.0.2-1 | vulnerable |
| Ubuntu | nim | 20.04 | 1.0.3~rc-1 | vulnerable |
| Ubuntu | nim | 20.04 | 1.0.4-1 | vulnerable |
| Ubuntu | nim | 20.04 | 1.0.6-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | nim | source | sid | 1.4.2-1 | not yet assigned | Not reported | Not reported |
| Debian | nim | source | forky | 1.4.2-1 | not yet assigned | Not reported | Not reported |
| Debian | nim | source | bookworm | 1.4.2-1 | not yet assigned | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [nim]Fixed
Details (2)
1.6.10-2· amd64 · bookwormFixed · Fixed:
1.4.2-1dsa · nim · debian · bookworm; dsa · nim · debian · 12
1.6.10-2· arm64 · bookwormFixed · Fixed:
1.4.2-1dsa · nim · debian · bookworm; dsa · nim · debian · 12
- [nim-doc]Fixed
Source package: [nim]
Details (2)
1.6.10-2· all · bookwormFixed · Fixed:
1.4.2-1dsa · nim · debian · bookworm; dsa · nim · debian · 12
1.6.10-2· all · bookwormFixed · Fixed:
1.4.2-1dsa · nim · debian · bookworm; dsa · nim · debian · 12
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2022_10095-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-29495]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2021-29495]
- [https://security-tracker.debian.org/tracker/CVE-2021-29495]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]