CVE-2026-27800 Zed has Zip Slip Path Traversal in Extension Archive Extraction

High 7.4 Published 25 Feb 2026 Updated 26 Feb 2026

A malicious extension can write files outside its sandbox via path traversal in ZIP extraction, potentially leading to code execution or data modification.

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: None listed

What is CVE-2026-27800?

CVE-2026-27800 is a high-severity path traversal vulnerability in zed-industries zed, published on 25 Feb 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

Zed, a code editor, has a Zip Slip (Path Traversal) vulnerability exists in its extension archive extraction functionality prior to version 0.224.4. The `extract_zip()` function in `crates/util/src/archive.rs` fails to validate ZIP entry filenames for path traversal sequences (e.g., `../`). This allows a malicious extension to write files outside its designated sandbox directory by downloading and extracting a crafted ZIP archive. Version 0.224.4 fixes the issue.

Weakness: CWE-22

Which versions are affected by CVE-2026-27800?

It affects 1 product.

Products include Zed Zed.

How do I fix CVE-2026-27800?

No fix has been published for CVE-2026-27800 yet. Limit exposure of the affected software until one is available.

Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.

Is CVE-2026-27800 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-27800 exists.

Sources

Also known as GHSA-v385-xh3h-rrfr.