CVE-2025-66471
high
CVSS v3
—
CVSS v4 NEW
—
VIR risk
8.0
Description
RHSA-2026:1254: python-urllib3 security update (Important)
Predictions
Exploit likelihood
20%
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
SUSE Affected 1 release
| Version | Status | Fixed in |
|---|---|---|
| — | Affected | — |
Debian Mixed 5 releases
| Version | Status | Fixed in |
|---|---|---|
| trixie | Affected | — |
| sid | Fixed | 2.6.3-1 |
| forky | Fixed | 2.6.3-1 |
| bullseye | Affected | — |
| bookworm | Affected | — |
AlmaLinux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | fence-agents-virsh-4.10.0-98.el9_7.4.noarch.rpm |
| 8 | Fixed | resource-agents-gcp-4.9.0-54.el8_10.27.x86_64.rpm |
Red Hat Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Rocky Linux Fixed 2 releases
| Version | Status | Fixed in |
|---|---|---|
| 9 | Fixed | — |
| 8 | Fixed | — |
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| PyPI | urllib3 | >=1.0,<2.6.0 | 2.6.0 |
References
- https://github.com/urllib3/urllib3/security/advisories/GHSA-2xpw-w6gg-jr37
- https://nvd.nist.gov/vuln/detail/CVE-2025-66471
- https://github.com/urllib3/urllib3/commit/c19571de34c47de3a766541b041637ba5f716ed7
- https://github.com/urllib3/urllib3
- https://errata.rockylinux.org/RLSA-2026:1240
- https://errata.rockylinux.org/RLSA-2026:1241
- https://errata.rockylinux.org/RLSA-2026:1226
- https://errata.rockylinux.org/RLSA-2026:1224
- https://errata.rockylinux.org/RLSA-2026:1254
- https://access.redhat.com/errata/RHSA-2026:1087
- https://access.redhat.com/errata/RHSA-2026:1088
- https://access.redhat.com/errata/RHSA-2026:1089
- https://access.redhat.com/errata/RHSA-2026:1239
- https://www.suse.com/security/cve/CVE-2025-66471.html
- https://errata.rockylinux.org/RLSA-2026:1087
- https://errata.rockylinux.org/RLSA-2026:1089
- https://errata.rockylinux.org/RLSA-2026:1239
- https://errata.rockylinux.org/RLSA-2026:1088
- https://security-tracker.debian.org/tracker/CVE-2025-66471
- https://access.redhat.com/errata/RHSA-2026:1254
- https://bugzilla.redhat.com/2419455
- https://bugzilla.redhat.com/2419467
- https://bugzilla.redhat.com/2427726
- https://errata.almalinux.org/8/ALSA-2026-1254.html
- https://access.redhat.com/errata/RHSA-2026:1224
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.