CVE-2026-21889CWE-284

Weblate leaks information via screenshots

Low · published January 14, 2026

CVSS v4.0
2.3
EPSS
0%
Percentile
31.6
In the wild
Unconfirmed
What it is

⚠️ A curious user could peek at your screenshots by simply guessing their filenames! This low-severity flaw in Weblate, prior to version 5.15.2, reveals just how sneaky access control can be. 😄 Think of it like a public bulletin board where anyone can read messages if they can guess the codes for each slot — if they know the right 'addresses,' they can view secrets that should be private! While this vulnerability isn't absolutely devastating, it could lead to unauthorized users accessing sensitive screenshots, possibly exposing confidential information or internal discussions. Even a low chance of exposure can be a slippery slope!

Put simply

Think of it like a public bulletin board where anyone can read messages if they can guess the codes for each slot — if they know the right 'addresses,' they can view secrets that should be private! In versions prior to 5.15.2, Weblate served screenshot images from the HTTP server without proper access controls, allowing unauthenticated users to potentially access these images just by knowing or guessing their filenames.

What to do

While this vulnerability isn't absolutely devastating, it could lead to unauthorized users accessing sensitive screenshots, possibly exposing confidential information or internal discussions. Even a low chance of exposure can be a slippery slope! To secure your application, upgrade Weblate to version 5.15.2 immediately. Additionally, consider implementing stricter access controls to safeguard sensitive resources and audit your configuration to prevent similar issues in the future. You've got this! With a simple update, you'll ensure your localization tool is secure and your secrets stay safe. 🛡️

The record
Technical detail
CVSS v4.0
2.3 · LOW
Vector
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
EPSS
0.00387 · 31.6th percentile
Weakness
CWE-284 · Improper Access Control
Published
2026-01-14T16:28Z
EPSS history
Timeline
  • 14 JAN 16:28Z
    Weblate leaks information via screenshots
    cvelistv5