Packages
- python-urllib3 - HTTP library with thread-safe connection pooling
Details
Yu-Fu Fu, Seth Larson and Yonatan Magier discovered that urllib3 did not
correctly handle certain certificate validations. An attacker could
possibly use this issue to observe or modify forwarded traffic. This
issue only affected Ubuntu 26.04 LTS. (CVE-2026-97687)
Martin Desrumaux discovered that urllib3 did not correctly handle
decoding certain deflate responses. An attacker could possibly use this
issue to cause a denial of service. This issue only affected
Ubuntu 26.04 LTS. (CVE-2026-97688)
It was discovered that urllib3 did not correctly handle certain memory
operations. An attacker could possibly use this issue to cause a denial
of service. (CVE-2026-97689)
Yu-Fu Fu, Seth Larson and Yonatan Magier discovered that urllib3 did not
correctly handle certain certificate validations. An attacker could
possibly use this issue to observe or modify forwarded traffic. This
issue only affected Ubuntu 26.04 LTS. (CVE-2026-97687)
Martin Desrumaux discovered that urllib3 did not correctly handle
decoding certain deflate responses. An attacker could possibly use this
issue to cause a denial of service. This issue only affected
Ubuntu 26.04 LTS. (CVE-2026-97688)
It was discovered that urllib3 did not correctly handle certain memory
operations. An attacker could possibly use this issue to cause a denial
of service. (CVE-2026-97689)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | python3-urllib3 – 2.6.3-1ubuntu1.2 | ||
| 24.04 LTS noble | python3-urllib3 – 2.0.7-1ubuntu0.8 | ||
| 22.04 LTS jammy | python3-urllib3 – 1.26.5-1~exp1ubuntu0.8 | ||
| 20.04 LTS focal | python3-urllib3 – 1.25.8-2ubuntu0.4+esm6 | ||
| 18.04 LTS bionic | python-urllib3 – 1.22-1ubuntu0.18.04.2+esm5 | ||
| python3-urllib3 – 1.22-1ubuntu0.18.04.2+esm5 | |||
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