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 |
|---|---|---|---|---|
| stackstorm/ | 4e3f8c7ca52d | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | f190a6212195 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | 259503496ff9 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | b1de2055c362 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | b1a338f64773 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | 1c8904a3bf67 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | 1bf35bfaf00c | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stackstorm/ | 19fdfffdbba8 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| stakewiselabs/ | 2afd0c0b34cb | urllib3 | 2.6.3 | 1 |
| stashapp/ | 24dbd7607174 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| statcan/ | 3921305425b8 | urllib3 | 2.6.3 | 1 |
| streamnative/ | 91e54375e154 | urllib3 | 2.6.3 | 1 |
| substratusai/ | 61695be635eb | urllib3 | 2.6.3 | 1 |
| supabase/ | aa1c92c0cf32 | urllib3 | 2.6.3 | 1 |
| supabase/ | d3aa0c86c7b3 | urllib3 | 2.6.3 | 1 |
| svtechnmaa/ | 67be2aba9436 | urllib3 | 2.6.3 | 1 |
| svtechnmaa/ | 6e368ace0977 | python-urllib3 urllib3 | 1.25.8-2ubuntu0.4+esm3 2.6.3 | 1 |
| svtechnmaa/ | 674fad30a51f | urllib3 | 2.6.3 | 1 |
| swisscomcloud/ | b6639d1a922e | urllib3 | 2.6.3 | 1 |
| t3nde/ | d2939e9a719b | urllib3 | 2.6.3 | 1 |
| tachyongroup/ | 7e79b9000856 | urllib3 | 2.6.3 | 1 |
| tachyongroup/ | f4f7fabe1037 | urllib3 | 2.6.3 | 1 |
| taigaio/ | 9f97323cc150 | urllib3 | 2.6.3 | 1 |
| teknas09/ | 12a1fa85c4aa | urllib3 | 2.6.3 | 1 |
| tenableofficial/ | c88e43fe1a8c | urllib3 | 2.6.3 | 1 |
| th0th/ | d06fa39f7406 | urllib3 python-urllib3 | 2.6.3 1.26.5-1~exp1+deb11u3 | 1 |
| thongngo3301/ | a341af5976e3 | urllib3 | 2.6.3 | 1 |
| timescale/ | a8e3322e1cf9 | python-urllib3 urllib3 | 1.26.5-1~exp1ubuntu0.5 2.6.3 | 1 |
| timescale/ | cdb9ae118899 | python-urllib3 urllib3 | 1.26.5-1~exp1ubuntu0.5 2.6.3 | 1 |
| timescale/ | d7db8f1085a3 | python-pip urllib3 | no fix listed 2.6.3 | 1 |
| timescale/ | e8d0a9cc3db5 | python-pip python-urllib3 urllib3 | no fix listed 1.26.5-1~exp1ubuntu0.5 2.6.3 | 1 |
| timescale/ | ed719c0cd19d | python-urllib3 urllib3 | 1.26.5-1~exp1ubuntu0.5 2.6.3 | 1 |
| timothyclarke/ | 22c41e5ca7e2 | urllib3 | 2.6.3 | 1 |
| tomsajan/ | fb61907707b8 | urllib3 | 2.6.3 | 1 |
| tomsquest/ | 4759cc353a1d | urllib3 | 2.6.3 | 1 |
| trungkien210493/ | 2cc8c3763c4c | urllib3 | 2.6.3 | 1 |
| twentycrm/ | 2f78405a78be | python-urllib3 urllib3 | 1.26.5-1~exp1ubuntu0.5 2.6.3 | 1 |
| ubcctlt/ | cbbbbc8ae16b | urllib3 | 2.6.3 | 1 |
| vabene1111/ | 0f8d061895e9 | urllib3 | 2.6.3 | 1 |
| vabene1111/ | ec4e9e2905b0 | urllib3 | 2.6.3 | 1 |
| veecode/ | c443520aebf7 | urllib3 | 2.6.3 | 1 |
| viadee/ | 2e27e3b3ee56 | urllib3 | 2.6.3 | 1 |
| vividplanet/ | ae1c5b1cbecb | urllib3 | 2.6.3 | 1 |
| voltha/ | c4e41e92f046 | urllib3 | 2.6.3 | 1 |
| voltha/ | 37f80524c207 | urllib3 | 2.6.3 | 1 |
| voltha/ | 9ee8c1f4428c | urllib3 | 2.6.3 | 1 |
| voltha/ | 655c3048a602 | urllib3 | 2.6.3 | 1 |
| voltha/ | ff596b62de59 | urllib3 | 2.6.3 | 1 |
| wallarm/ | 5cb2ae08b40f | urllib3 | 2.6.3 | 1 |
| wallarm/ | 097cadc42336 | urllib3 | 2.6.3 | 1 |