GHSA-w7qw-5wfv-gwx9: snipe/snipe-it (CVE-2026-55481)

Package	Ecosystem	Affected	Fixed in
snipe/snipe-it	Packagist	<8.6.2	8.6.2

Machine-written summary

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

Snipe-IT versions before 8.6.2 are affected by CSS injection through the header_color setting, which is rendered into a style block and can be used to inject CSS. An attacker who already has superadmin access to the Settings > Branding page can save a crafted value that then executes in the browsers of all authenticated users on their next page load, which the source says could be used to steal session tokens. The fix is to upgrade to Snipe-IT 8.6.2 or later; until then, the source suggests enabling Content Security Policy in the .env file.

Written 31 Oct 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
6.2	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:P/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N	CNA (GitHub_M)

CISA KEV Not listed.
EPSS 0.0032, the 24th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

31 Oct 2026, 14:07 UTC First seen by agentprime
31 Oct 2026, 14:07 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.