CVE-2025-67819 Weaviate OSS has path traversal vulnerability via the Shard Movement API

Medium 4.9 Published Updated

An attacker can read arbitrary files from the server by exploiting a lack of validation in the file transfer logic when specific replication states are active.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2025-67819?

CVE-2025-67819 is a medium-severity path traversal vulnerability in n/a, published on 12 Dec 2025. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

An issue was discovered in Weaviate OSS before 1.33.4. Due to a lack of validation of the fileName field in the transfer logic, an attacker who can call the GetFile method while a shard is in the "Pause file activity" state and the FileReplicationService is reachable can read arbitrary files accessible to the service process.

Weakness: CWE-22

Which versions are affected by CVE-2025-67819?

9 open source packages ship an affected version, including github.com/weaviate/weaviate. It affects 1 product.

PackageAffectedFixed in
github.com/weaviate/weaviate GoFrom 1.30.01.30.20, 1.31.19, 1.32.16, 1.33.4
github.com/weaviate/weaviate GoFrom 1.30.01.30.20
github.com/weaviate/weaviate GoFrom 1.30.01.30.20
github.com/weaviate/weaviate GoFrom 1.31.0-rc.01.31.19
github.com/weaviate/weaviate GoFrom 1.31.0-rc.01.31.19
github.com/weaviate/weaviate GoFrom 1.32.0-rc.01.32.16
3 more packages
github.com/weaviate/weaviate GoFrom 1.32.0-rc.01.32.16
github.com/weaviate/weaviate GoFrom 1.33.0-rc.01.33.4
github.com/weaviate/weaviate GoFrom 1.33.0-rc.01.33.4

Products include Weaviate Weaviate.

How do I fix CVE-2025-67819?

Upgrade github.com/weaviate/weaviate to a fixed version for your release line: 1.30.20, 1.31.19, 1.32.16 or 1.33.4.

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

Is CVE-2025-67819 being exploited?

There is no known exploitation of CVE-2025-67819 in the wild and no public exploit code.

Sources

Also known as GHSA-hmmh-292h-3364, GO-2025-4238, MINI-3rpf-m9x3-6g34, MINI-4xwj-q4m8-chv6, MINI-7mvr-mrfc-mh3j, MINI-j6x5-v68m-rrwq and 2 more.

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