CVE-2026-82255 gitoxide 0.25.4 HTTP Credential Leak via Redirect

High 7.6 Published Updated

Attackers can steal authentication tokens by exploiting HTTP redirects in gitoxide, leading to credential exposure and potential account takeover.

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-2026-82255?

CVE-2026-82255 is a high-severity vulnerability in GitoxideLabs gitoxide, published on 28 Aug 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

gitoxide versions from 0.25.4 contain an HTTP credential leak vulnerability in the curl-based transport backend where credentials are sent to attacker-controlled servers after HTTP redirects. The vulnerability occurs because credential validation checks the original URL instead of the effective URL after redirect, allowing attackers to steal authentication tokens through cross-domain redirects or HTTPS-to-HTTP downgrades.

Weakness: CWE-522

Which versions are affected by CVE-2026-82255?

2 open source packages ship an affected version, including gix-transport.

PackageAffectedFixed in
gix-transport crates.ioFrom 0.25.40.56.0
gix-transport crates.ioFrom 0.25.40.56.0

How do I fix CVE-2026-82255?

Upgrade gix-transport to 0.56.0 or later.

Is CVE-2026-82255 being exploited?

There is no known exploitation of CVE-2026-82255 in the wild and no public exploit code.

Sources

Also known as DEBIAN-CVE-2026-82255, GHSA-2r3q-w7g9-8rpr, GHSA-9857-6mw7-fq2m, MINI-j3p4-f6j8-hc2q, UBUNTU-CVE-2026-82255.

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