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Debian · Security advisory · January 23, 2026
Debian · Security advisory · January 23, 2026DLA-4446-1: python-urllib3 security update
DLA-4446-1, released January 23, 2026, fixes 1 CVE in python-urllib3 (version 1.26.5-1~exp1+deb11u3). None of them is reported as exploited. Patch Radar priority: High. The product is no longer supported.
HighUnsupported product
CVEs closed
1
None rated Critical
Exploited
0
None reported
Highest CVSS
7.5
Base score, 0 to 10
Highest EPSS
0.0292
87th percentile
Fixed package versions
| Product | Release | Fixed in |
|---|---|---|
| python-urllib3 | Debian 11.6 (bullseye) | 1.26.5-1~exp1+deb11u3 |
CVEs this fix closes
| Priority | CVE | Title | CVSS | EPSS | Exploitation |
|---|---|---|---|---|---|
| High | CVE-2026-21441 | urllib3 vulnerable to decompression-bomb safeguard bypass when following HTTP redirects (streaming API) | 7.5 | 0.0292 | None reported |
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