CVE-2026-21441
2 advisories.
PyPI/urllib3 CVE-2026-21441: high 7.5
Decompression-bomb safeguards bypassed when following HTTP redirects (streaming API)
Action: Upgrade urllib3 to 2.6.3 or later.
pip install urllib3==2.6.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.22 | 2.6.3 | - |
Fixed versions
| 2.6.3 |
Sources
- osv: GHSA-38jv-5279-wg99
- https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99
- https://nvd.nist.gov/vuln/detail/CVE-2026-21441
- https://github.com/urllib3/urllib3/commit/8864ac407bba8607950025e0979c4c69bc7abc7b
- https://github.com/urllib3/urllib3
- https://lists.debian.org/debian-lts-announce/2026/01/msg00017.html
CVE-2026-21441 · published · modified · JSON
PyPI/urllib3 CVE-2026-21441: high 7.5
Decompression-bomb safeguards bypassed when following HTTP redirects (streaming API)
Action: Upgrade urllib3 to 2.6.3 or later.
pip install urllib3==2.6.3Affected
| introduced | fixed | last affected |
|---|---|---|
| 1.22 | 2.6.3 | - |
Fixed versions
| 2.6.3 |
Sources
- osv: PYSEC-2026-1996
- https://github.com/urllib3/urllib3/security/advisories/GHSA-38jv-5279-wg99
- https://nvd.nist.gov/vuln/detail/CVE-2026-21441
- https://github.com/urllib3/urllib3/commit/8864ac407bba8607950025e0979c4c69bc7abc7b
- https://github.com/urllib3/urllib3
- https://lists.debian.org/debian-lts-announce/2026/01/msg00017.html
- https://pypi.org/project/urllib3
- https://github.com/advisories/GHSA-38jv-5279-wg99
CVE-2026-21441 · published · modified · JSON