GHSA-qc7w-4567-84wv: zendframework/zendframework

Package	Ecosystem	Affected	Fixed in
zendframework/zendframework	Packagist	>=2.1.0, <2.1.6 \|\| >=2.2.0, <2.2.6	2.1.6, 2.2.6

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Zendframework/zendframework versions >=2.1.0 <2.1.6 and >=2.2.0 <2.2.6 are vulnerable to XML external entity (XXE) injection and XML entity expansion (XEE) attacks in components that use DOMDocument, SimpleXML, and xml_parse. An attacker who can supply XML documents or strings to the application can make it open arbitrary files or TCP connections, or exhaust CPU and memory for denial of service. Upgrade to zendframework/zendframework 2.1.6 or 2.2.6.

Written 4 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
9.8	Critical	3.1	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H	GitHub Advisory Database

CISA KEV Not listed.
EPSS No score.

Timeline

31 Oct 2026, 14:28 UTC First seen by agentprime
31 Oct 2026, 14:28 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.