CVE-2026-8286

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

Show unmaintained releases

Package	Ubuntu Release	Status
curl	26.04 LTS resolute	Fixed 8.18.0-1ubuntu2.2
	25.10 questing	Fixed 8.14.1-2ubuntu1.4
	24.04 LTS noble	Fixed 8.5.0-2ubuntu10.10
	22.04 LTS jammy	Fixed 7.81.0-1ubuntu1.25
	20.04 LTS focal	Fixed 7.68.0-1ubuntu2.25+esm4
	18.04 LTS bionic	Fixed 7.58.0-2ubuntu3.24+esm9
	16.04 LTS xenial	Fixed 7.47.0-1ubuntu2.19+esm16
	14.04 LTS trusty	Fixed 7.35.0-1ubuntu2.20+esm20

Get expanded security coverage with Ubuntu Pro

Reduce your average CVE exposure time from 98 days to 1 day with expanded CVE patching, ten-years security maintenance and optional support for the full stack of open-source applications. Free for personal use.

Get Ubuntu Pro 30-day free trial

Patch details

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

Package	Patch details
curl	Upstream: a86efdd

References

Related Ubuntu Security Notices (USN)

USN-8487-1
curl vulnerabilities
30 June 2026