CVE-2026-8924

Description

A flaw in curl's cookie parsing logic allows a malicious HTTP server to set "super cookies" that bypass the Public Suffix List check. This enables an attacker-controlled origin to inject cookies that curl will subsequently scope and transmit to unrelated third-party domains.

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	Not affected

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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	Upstream: 51beed1

References

Related Ubuntu Security Notices (USN)

USN-8487-1
curl vulnerabilities
30 June 2026