CVE-2026-21441
HighAdvisory
Published 7 Jan 2026In the index since 5 Sept 2026
- Severity
- High
- worst across findings
- CVSS
- 8.9
- base score, highest
- EPSS
- 0.030
- 86th percentile
- CISA KEV
- Not listed
- no confirmed exploitation
- Charts affected
- 836
- of 17,787 indexed, latest versions
- Container images
- 893
- deployed by those charts
- Fix available
- 5 of 5
- affected packages
Decompression-bomb safeguards bypassed when following HTTP redirects (streaming API)
Carried by container images the latest versions of 836 of 17,787 indexed charts deploy, on 893 images.
| Affected package | Affected versions | Fixed in | Images |
|---|---|---|---|
| py3-pipapk | 25.0.1-r0, 25.2-r0, 26.0.1-r1 | 26.1.1-r0 | 3 |
| urllib3pypi | 1.22, 1.23, 1.24, 1.24.1+47 more | 2.6.3 | 864 |
| python-pipdeb | 9.0.1-2.3~ubuntu1, 9.0.1-2.3~ubuntu1.18.04.1, 9.0.1-2.3~ubuntu1.18.04.2, 9.0.1-2.3~ubuntu1.18.04.4+14 more | 9.0.1-2.3~ubuntu1.18.04.8+esm8 | 60 |
| python-urllib3deb | 1.22-1ubuntu0.18.04.1, 1.22-1ubuntu0.18.04.2, 1.25.8-2ubuntu0.1, 1.25.8-2ubuntu0.2+8 more | 1.25.8-2ubuntu0.4+esm3, 1.26.5-1~exp1+deb11u3, 1.26.5-1~exp1ubuntu0.5, 1.26.12-1+deb12u3+1 more | 52 |
| py3-urllib3apk | 1.26.18-r1, 1.26.20-r0 | 1.26.18-r2, 1.26.20-r1 | 4 |
- OSV records
- ALPINE-CVE-2026-21441CGA-295m-5rcj-2qm6CGA-7cp6-w84v-cpfxDEBIAN-CVE-2026-21441GHSA-38jv-5279-wg99UBUNTU-CVE-2026-21441DLA-4446-1
- Also known as
- CGA-hqjr-j69p-ch46, CGA-rh7x-c7j6-9qqm, DSA-6102-2, PYSEC-2026-1996, USN-7955-1, USN-7955-2, USN-8010-1
Charts affected
836 by stars
Container images carrying it
893 by charts deploying them
A fixed version is listed for 5 of the 5 affected packages.
| Container image | Digest | Package | Fixed in | Used by |
|---|---|---|---|---|
| mintproject/ | 67d2f2103085 | urllib3 | 2.6.3 | 1 |
| mintproject/ | 02260d20a21f | urllib3 | 2.6.3 | 1 |
| mondata/ | 6f94c6caf8bf | urllib3 | 2.6.3 | 1 |
| moonrailgun/ | b528c8f8fcc4 | urllib3 | 2.6.3 | 1 |
| moreillon/ | bacb2ddd8394 | urllib3 | 2.6.3 | 1 |
| mozilla/ | 016162bf39d8 | urllib3 | 2.6.3 | 1 |
| mozilla/ | 93752877dced | urllib3 | 2.6.3 | 1 |
| muhammedgamal/ | 74b4cd69b6fa | urllib3 | 2.6.3 | 1 |
| mvitale1989/ | 1504ccda06df | urllib3 | 2.6.3 | 1 |
| nathanielvarona/ | b746a34e5597 | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 64fd8dab075f | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 8b645ac1a23e | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 6527b05d5d03 | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 29d229ab446e | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 969af3cb8466 | urllib3 | 2.6.3 | 1 |
| neilpeterson/ | 39ce9f92e899 | urllib3 | 2.6.3 | 1 |
| netbirdio/ | 15a3aab9a345 | urllib3 | 2.6.3 | 1 |
| netbirdio/ | 1b59e1c905c9 | urllib3 | 2.6.3 | 1 |
| netbirdio/ | 332cc31f5f35 | urllib3 | 2.6.3 | 1 |
| netbirdio/ | 88b5fb704a8c | urllib3 | 2.6.3 | 1 |
| netboxcommunity/ | 3d652dca5351 | urllib3 | 2.6.3 | 1 |
| netboxcommunity/ | 9bf83b350a89 | urllib3 | 2.6.3 | 1 |
| ngoduykhanh/ | 099371dd9ba6 | urllib3 | 2.6.3 | 1 |
| ngoduykhanh/ | 9898a7cf37d2 | urllib3 | 2.6.3 | 1 |
| nyurik/ | e0553236e3eb | urllib3 | 2.6.3 | 1 |
| octoprint/ | 106c26efcd8a | urllib3 | 2.6.3 | 1 |
| octoprint/ | ea3bffae2470 | urllib3 | 2.6.3 | 1 |
| odaniait/ | 3fff8a8570ec | urllib3 | 2.6.3 | 1 |
| odavid/ | e7ab3bbc948e | urllib3 | 2.6.3 | 1 |
| omecproject/ | bcc5f19fd676 | python-pip | 9.0.1-2.3~ubuntu1.18.04.8+esm8 | 1 |
| omecproject/ | d109a8e57e71 | urllib3 | 2.6.3 | 1 |
| opea/ | 25dd26d9cd09 | urllib3 | 2.6.3 | 1 |
| opea/ | 38c51b791efa | urllib3 | 2.6.3 | 1 |
| opea/ | 58f91683892d | urllib3 | 2.6.3 | 1 |
| opea/ | e2436483b73d | urllib3 | 2.6.3 | 1 |
| opea/ | 3eaa91849512 | urllib3 | 2.6.3 | 1 |
| opea/ | 262c6048aab8 | urllib3 | 2.6.3 | 1 |
| opea/ | f68bec6a1271 | urllib3 | 2.6.3 | 1 |
| opea/ | 02f9e8fa5d71 | urllib3 | 2.6.3 | 1 |
| opea/ | 249afad3d268 | urllib3 | 2.6.3 | 1 |
| opea/ | 257ae94709e9 | urllib3 | 2.6.3 | 1 |
| opea/ | fe08165d7770 | urllib3 | 2.6.3 | 1 |
| openbas/ | a277796d9724 | urllib3 | 2.6.3 | 1 |
| opencsghq/ | 2f03fead54db | urllib3 | 2.6.3 | 1 |
| opencsghq/ | 2cd29671a03e | urllib3 | 2.6.3 | 1 |
| opencsghq/ | c36a5bac3cf0 | urllib3 | 2.6.3 | 1 |
| opencsghq/ | 47e22aa71870 | urllib3 | 2.6.3 | 1 |
| opencsghq/ | b4e849fcf94a | urllib3 | 2.6.3 | 1 |
| opendatacube/ | 120457ffcd69 | urllib3 | 2.6.3 | 1 |
| opendatacube/ | 5d810e8504b8 | python-pip urllib3 | 9.0.1-2.3~ubuntu1.18.04.8+esm8 2.6.3 | 1 |