CVE catalog
CVE-2021-41945
httpx: CVE-2021-41945
- Severity
- Critical · CVSS 9.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 2.12% · Oct 25, 2026
Encode OSS httpx < 0.23.0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`.
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 | httpx | sid | 0.28.1-2 | fixed |
| Debian | httpx | forky | 0.28.1-2 | fixed |
| Debian | httpx | trixie | 0.28.1-1 | fixed |
| Debian | httpx | bookworm | 0.23.3-1 | fixed |
| Opensuse | python-httpx | tumbleweed | 0.28.1-2.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | httpx | source | sid | 0.23.0-1 | not yet assigned | Not reported | [1010336] |
| Debian | httpx | source | forky | 0.23.0-1 | not yet assigned | Not reported | [1010336] |
| Debian | httpx | source | trixie | 0.23.0-1 | not yet assigned | Not reported | [1010336] |
| Debian | httpx | source | bookworm | 0.23.0-1 | not yet assigned | Not reported | [1010336] |
| Opensuse | python-httpx | rpm | tumbleweed | 0.28.1-2.1 | Not reported | OPENSUSE-SU-2025:14664-1 | Not reported |
OpenFactory catalog packages
[openSUSE Tumbleweed]
- [python313-httpx]Unknown
Source package: [python-httpx]
Details (1)
0.28.1-4.4· noarch · tumbleweedUnknown · Fixed:
0.28.1-2.1Version impact unknown
dsa · python-httpx · opensuse · tumbleweed
- [python314-httpx]Unknown
Source package: [python-httpx]
Details (1)
0.28.1-4.4· noarch · tumbleweedUnknown · Fixed:
0.28.1-2.1Version impact unknown
dsa · python-httpx · opensuse · tumbleweed
[Debian 12 (Bookworm)]
- [python3-httpx]Fixed
Source package: [httpx]
Details (2)
0.23.3-1· all · bookwormFixed · Fixed:
0.23.0-1dsa · httpx · debian · bookworm; dsa · httpx · debian · 12
0.23.3-1· all · bookwormFixed · Fixed:
0.23.0-1dsa · httpx · debian · bookworm; dsa · httpx · debian · 12
[Debian 13 (Trixie)]
- [python3-httpx]Fixed
Source package: [httpx]
Details (2)
0.28.1-1· all · trixieFixed · Fixed:
0.23.0-1dsa · httpx · debian · 13
0.28.1-1· all · trixieFixed · Fixed:
0.23.0-1dsa · httpx · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_12041-1.json]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2021-41945]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:14664-1]
- [https://security-tracker.debian.org/tracker/CVE-2021-41945]
- [https://wid.cert-bund.de/.well-known/csaf/white/2023/wid-sec-w-2023-2679.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]