CVE-2021-41945
critical
CVSS v3
—
CVSS v4 NEW
—
VIR risk
9.5
Description
Encode OSS httpx <=1.0.0.beta0 is affected by improper input validation in `httpx.URL`, `httpx.Client` and some functions using `httpx.URL.copy_with`.
Predictions
Exploit likelihood
30%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
OS impact
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Fixed | 0.23.0-1 |
| sid | Fixed | 0.23.0-1 |
| forky | Fixed | 0.23.0-1 |
| bullseye | Affected | — |
| bookworm | Fixed | 0.23.0-1 |
Arch Fixed 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Fixed | 0.22.0-2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-41945
- https://github.com/encode/httpx/issues/2184
- https://github.com/encode/httpx/pull/2185
- https://github.com/encode/httpx/pull/2185/commits/e3c495a32c63d8aa7f1bcf3b7b27ee1a0ff428e1
- https://github.com/encode/httpx/commit/e9b0c85dd4f4e4469c57c4b38e5101fd12081b5c
- https://gist.github.com/lebr0nli/4edb76bbd3b5ff993cf44f2fbce5e571
- https://github.com/advisories/GHSA-h8pj-cxx2-jfg2
- https://github.com/encode/httpx
- https://github.com/encode/httpx/discussions/1831
- https://github.com/encode/httpx/releases/tag/0.23.0
- https://github.com/pypa/advisory-database/tree/main/vulns/httpx/PYSEC-2022-183.yaml
- http://encode.com
- https://security-tracker.debian.org/tracker/CVE-2021-41945
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.