HOMEVULNERABILITIESCVE-2026-27457
MEDIUM

CVE-2026-27457

CWE-200Published: February 26, 2026· Updated: Feb 27, 2026

4.3
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.2th

Official Description

Weblate is a web based localization tool. Prior to version 5.16.1, the REST API's `AddonViewSet` (`weblate/api/views.py`, line 2831) uses `queryset = Addon.objects.all()` without overriding `get_queryset()` to scope results by user permissions. This allows any authenticated user (or anonymous users if `REQUIRE_LOGIN` is not set) to list and retrieve ALL addons across all projects and components via `GET /api/addons/` and `GET /api/addons/{id}/`. Version 5.16.1 fixes the issue.

NVD Source

Technical Analysis

CVE-2026-27457 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

From a weakness classification perspective (CWE-200): Information exposure vulnerabilities leak sensitive data to unauthorized actors.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected Vendors & Products

weblate1 product
weblate
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9
PATCHhttps://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0f
PATCHhttps://github.com/WeblateOrg/weblate/pull/18107
PATCHhttps://github.com/WeblateOrg/weblate/pull/18164
PATCHhttps://github.com/WeblateOrg/weblate/security/advisories/GHSA-wppc-7cq7-cgfv

All References (6)

→
https://github.com/WeblateOrg/weblate/commit/3f58f9a4152bc0cbdd6eff5954f9c7bc4d9f0af9Patch
→
https://github.com/WeblateOrg/weblate/commit/7802c9b121eb407c48d4adddd4f2458fb3efef0fPatch
→
https://github.com/WeblateOrg/weblate/pull/18107Issue Tracking · Patch
→
https://github.com/WeblateOrg/weblate/pull/18164Issue Tracking · Patch
→
https://github.com/WeblateOrg/weblate/releases/tag/weblate-5.16.1Product · Release Notes
→
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-wppc-7cq7-cgfvPatch · Vendor Advisory

Quick Facts

CVE IDCVE-2026-27457
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-200
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedFeb 26, 2026

Related CVEs (CWE-200)

CVE-2026-40965
10.0
CVE-2026-27604
10.0
CVE-2026-54305
9.9
CVE-2026-21515
9.9
CVE-2026-40498
9.8
CVE-2026-28213
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-27457 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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