CVE-2026-8286

Publication date 26 June 2026

Last updated 9 July 2026

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

8.1 · High

Score breakdown

Description

A vulnerability exists where a new transfer that uses STARTTLS to upgrade the connection might reuse an existing live connection even though the TLS configuration mismatches so it should not.

Why is this CVE low priority?

Upstream defined this as low severity

Learn more about Ubuntu priority

Status

Package Ubuntu Release Status
curl 26.10 stonking
Not affected
26.04 LTS resolute
Fixed in 8.18.0-1ubuntu2.2
25.10 questing
Fixed in 8.14.1-2ubuntu1.4
24.04 LTS noble
Fixed in 8.5.0-2ubuntu10.10
22.04 LTS jammy
Fixed in 7.81.0-1ubuntu1.25
20.04 LTS focal
Fixed in 7.68.0-1ubuntu2.25+esm4
18.04 LTS bionic
Fixed in 7.58.0-2ubuntu3.24+esm9
16.04 LTS xenial
Fixed in 7.47.0-1ubuntu2.19+esm16
14.04 LTS trusty
Fixed in 7.35.0-1ubuntu2.20+esm20

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
curl

Severity score breakdown

CVSS version: CVSS v3.0

Base score 8.1 · High

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

References

Related Ubuntu Security Notices (USN)

Other references

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