CVE-2026-44544 gittuf: Policy can be rolled back to prior valid version
An attacker with push access can roll back gittuf policies to a previous trusted state, bypassing current security controls.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-44544?
CVE-2026-44544 is a medium-severity vulnerability in gittuf, published on 14 May 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
gittuf is a platform-agnostic Git security system. Prior to 0.14.0, an attacker with push access to gittuf's Reference State Log (RSL) can roll back the current policy to any previous policy trusted by the current set of root keys. gittuf determines the policy to load by inspecting the RSL. Except for the very first policy (which is automatically trusted given gittuf's TOFU model, or verified against manually specified keys), whenever an RSL entry that points to a new policy is encountered, gittuf validates that this policy is trusted. This is done by checking that the new policy’s root metadata is signed by the required threshold of the current policy's root keys. Because of this, an attacker with push access to the RSL may create a new entry that references an old policy (that is trusted by the most recent policy's set of root keys), thereby rolling back gittuf's policy to the attacker's chosen state. This vulnerability is fixed in 0.14.0.
Weakness: CWE-639
Which versions are affected by CVE-2026-44544?
3 open source packages ship an affected version, including github.com/gittuf/gittuf.
| Package | Affected | Fixed in |
|---|---|---|
github.com/gittuf/gittuf Go | All versions | 0.14.0 |
github.com/gittuf/gittuf Go | All versions | 0.14.0 |
github.com/gittuf/gittuf Go | All versions | 0.14.0 |
How do I fix CVE-2026-44544?
Upgrade github.com/gittuf/gittuf to 0.14.0 or later.
Is CVE-2026-44544 being exploited?
There is no known exploitation of CVE-2026-44544 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-44544, GHSA-vxvc-cg7j-rwqj, GO-2026-5683, UBUNTU-CVE-2026-44544.