CVE-2026-25639

Name	CVE-2026-25639
Description	Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.13.5, the mergeConfig function in axios crashes with a TypeError when processing configuration objects containing __proto__ as an own property. An attacker can trigger this by providing a malicious configuration object created via JSON.parse(), causing complete denial of service. This vulnerability is fixed in 1.13.5.
Source	CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
node-axios (PTS)	bullseye	0.21.1+dfsg-1+deb11u1	vulnerable
	bookworm	1.2.1+dfsg-1+deb12u1	vulnerable
	trixie	1.8.4+dfsg-1	vulnerable
	forky, sid	1.13.2+dfsg-1	vulnerable

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Urgency	Origin	Debian Bugs
node-axios	source	(unstable)	(unfixed)

Notes

https://github.com/axios/axios/security/advisories/GHSA-43fc-jf86-j433
Fixed by: https://github.com/axios/axios/commit/28c721588c7a77e7503d0a434e016f852c597b57 (v1.13.5)