CVE-2026-33435: Weblate is a web based localization tool

Q: How do I fix CVE-2026-33435?

weblate: upgrade to 5.17. Exact commands for each OS are on this page.

Q: Is CVE-2026-33435 being exploited?

CVE-2026-33435 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-33435 affect?

CVE-2026-33435 affects weblate. Severity is high (CVSS 8.0). Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in

This month

HIGH 8.0UPGRADE

CVE-2026-33435 is a high-severity flaw (CVSS 8.0) affecting weblate. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.0 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	None
EPSS exploit chance	0.7% (top 47%)
CISA exploited list	No
Weakness	CWE-23, CWE-94, CWE-434
Published	2026-04-15
Last modified	2026-10-26

Publisher (CNA): GitHub, Inc. · Vendor: weblate

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-15 19:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

weblate weblate UPGRADE

Affected: < 5.17

Fixed in: 5.17

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy weblate || rpm -q weblate || weblate --version

2. UPGRADE to 5.17 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade weblate

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade weblate

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-33435?

weblate: upgrade to 5.17. Exact commands for each OS are on this page.

Is CVE-2026-33435 being exploited?

CVE-2026-33435 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-33435 affect?

CVE-2026-33435 affects weblate. Severity is high (CVSS 8.0). Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in

How urgent is CVE-2026-33435?

Priority 41/100. High severity

Software pages

Git vulnerabilities

Related CVEs

CVE-2026-34393 HIGH 8.8 UPGRADE Weblate is a web based localization tool
CVE-2026-34244 MEDIUM 5.0 UPGRADE Weblate is a web based localization tool
CVE-2026-33220 MEDIUM 6.8 UPGRADE Weblate is a web based localization tool
CVE-2026-40256 MEDIUM 5.0 UPGRADE Weblate is a web based localization tool
CVE-2026-33440 MEDIUM 5.0 UPGRADE Weblate is a web based localization tool

References

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