CVE-2026-21889
Weblate leaks information via screenshots
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Weblate leaks information via screenshots
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
- Record
CVE-2026-21889- CVSS 4.0
- 2.3 Low
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 - Weakness
- CWE-284
- Updated
- 2026-11-02
EUVDEUVD-2026-2452
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
- Record
EUVD-2026-2452- CVSS 4.0
- 2.3 Low
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 - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-3g2f-4rjg-9385
Weblate leaks information via screenshots
Impact
The screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename.
Patches
References
Thanks to Lukas May and Michael Leu for reporting this.
- Record
GHSA-3g2f-4rjg-9385- CVSS 4.0
- 2.3 Low
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 - Weakness
- CWE-284
- Updated
- 2026-11-02
NVD
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
- Record
CVE-2026-21889- CVSS 4.0
- 2.3 Low
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-284
- Updated
- 2026-11-02
OSV
Weblate leaks information via screenshots
Weblate is a web based localization tool. Prior to 5.15.2, the screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename. This vulnerability is fixed in 5.15.2.
- Record
CVE-2026-21889- CVSS 4.0
- 2.3 Low
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 - Weakness
- CWE-284
- Updated
- 2026-11-02
OSVGHSA-3g2f-4rjg-9385
Weblate leaks information via screenshots
Impact
The screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename.
Patches
References
Thanks to Lukas May and Michael Leu for reporting this.
- Record
GHSA-3g2f-4rjg-9385- CVSS 4.0
- 2.3 Low
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 - Weakness
- CWE-284
- Updated
- 2026-11-02
OSVPYSEC-2026-2037
Weblate leaks information via screenshots
Impact
The screenshot images were served directly by the HTTP server without proper access control. This could allow an unauthenticated user to access screenshots after guessing their filename.
Patches
References
Thanks to Lukas May and Michael Leu for reporting this.
- Record
PYSEC-2026-2037- CVSS 4.0
- 2.3 Low
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 - Updated
- 2026-11-02
OSVopenSUSE-SU-2026:10240-1 No score
weblate-5.16-1.1 on GA media
These are all security issues fixed in the weblate-5.16-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:10240-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
weblatePyPI |
before 5.15.2 | 5.15.2 |
weblatePyPI |
before 5.15.2, plus listed versions 1.92.02.12.102.10.1 Show 45 moreShow less2.112.122.132.13.12.142.14.12.152.162.172.17.12.182.192.19.12.22.202.32.42.52.62.72.82.93.03.0.13.13.1.13.103.10.13.10.23.10.33.113.11.13.11.23.11.33.23.2.13.2.23.33.43.53.5.13.63.6.13.73.7.1 |
5.15.2 |
weblateopenSUSE:Tumbleweed |
before 5.16-1.1 | 5.16-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-21889 is a low vulnerability (CVSS 2.3) in Weblate, published January 14, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. Fixed in weblate 5.15.2.
References
github.com/WeblateOrg/weblate/security/advisories/GHSA-3g2f-4rjg-9385
nvd.nist.gov/vuln/detail/CVE-2026-21889
pypi.org/project/weblate
suse.com/security/cve/CVE-2026-21889
Left out here: 109 versions. The JSON record has them.