CVE-2026-34242 Weblate: Arbitrary File Read via Symlink

High 7.7 Published Updated

An attacker can read arbitrary files outside the repository via symlink following in the ZIP download feature of Weblate.

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-2026-34242?

CVE-2026-34242 is a high-severity path traversal vulnerability in WeblateOrg weblate, published on 15 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

Weblate is a web based localization tool. In versions prior to 5.17, the ZIP download feature didn't verify downloaded files, potentially following symlinks outside the repository. This issue has been fixed in version 5.17.

Weakness: CWE-59, CWE-22, CWE-200

Which versions are affected by CVE-2026-34242?

3 open source packages ship an affected version, including weblate. It affects 1 product.

PackageAffectedFixed in
weblate PyPIAll versions5.17
weblate PyPIAll versions5.17
weblate PyPIAll versions5.17

Products include Weblate Weblate.

How do I fix CVE-2026-34242?

Upgrade weblate to 5.17 or later.

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

Is CVE-2026-34242 being exploited?

There is no known exploitation of CVE-2026-34242 in the wild and no public exploit code.

Sources

Also known as GHSA-hv99-mxm5-q397, PYSEC-2026-2313.

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