CVE-2026-82584 Terminal escape sequence injection in the mix igniter.install confirmation prompt via package metadata
Attackers can forge terminal confirmation prompts via escape sequences in package metadata, deceiving developers into installing malicious dependencies.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-82584?
CVE-2026-82584 is a low-severity vulnerability in ash-project igniter, published on 7 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Improper Neutralization of Escape, Meta, or Control Sequences vulnerability in ash-project igniter allows a malicious package publisher to forge the mix igniter.install confirmation prompt.
mix igniter.install prints a confirmation panel (an anti-typosquatting safeguard) listing a package's hex metadata before adding it. The panel builder in Igniter.Project.Deps wrote publisher-controlled fields (meta.description, owner usernames, requirement names, version) to the terminal with only newlines stripped. A malicious or typosquatted package can embed ANSI terminal escape sequences (cursor movement, line erase, carriage returns) in its metadata to overwrite the panel, forging trusted author names and download counts while concealing the real ones, so a developer relying on the panel to vet the package is deceived into approving a malicious dependency.
This issue affects igniter: from 0.8.1 before 0.8.4.
Weakness: CWE-150
Which versions are affected by CVE-2026-82584?
1 open source package ship an affected version, including igniter.
| Package | Affected | Fixed in |
|---|---|---|
igniter Hex | From 0.8.1 | 0.8.4 |
How do I fix CVE-2026-82584?
Upgrade igniter to 0.8.4 or later.
Is CVE-2026-82584 being exploited?
There is no known exploitation of CVE-2026-82584 in the wild and no public exploit code.
Sources
Also known as EEF-CVE-2026-82584, GHSA-cj7w-j579-gc42.