CVE-2026-28780

Publication date 5 May 2026

Last updated 6 May 2026

Ubuntu priority

Why this priority?

Description

buffer overflow in mod_proxy_ajp via ajp_msg_check_header()

Why is this CVE low priority?

Apache httpd developers have rated this to be a low-severity issue

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
apache2	26.04 LTS resolute	Fixed 2.4.66-2ubuntu2.1
	25.10 questing	Fixed 2.4.64-1ubuntu3.4
	24.04 LTS noble	Fixed 2.4.58-1ubuntu8.12
	22.04 LTS jammy	Fixed 2.4.52-1ubuntu4.20
	20.04 LTS focal	Needs evaluation
	18.04 LTS bionic	Needs evaluation
	16.04 LTS xenial	Needs evaluation
	14.04 LTS trusty	Needs evaluation

Patch details

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

Package	Patch details
apache2	Upstream: d04119e

References

Related Ubuntu Security Notices (USN)

USN-8239-1
Apache HTTP Server vulnerabilities
6 May 2026

Other references

https://www.cve.org/CVERecord?id=CVE-2026-28780

Access our resources on patching vulnerabilities