HOMEVULNERABILITIESCVE-2026-33440
MEDIUM

CVE-2026-33440

CWE-918Published: April 15, 2026· Updated: Apr 21, 2026

5.0
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:6.9th

Official Description

Weblate is a web based localization tool. In versions prior to 5.17, the ALLOWED_ASSET_DOMAINS setting applied only to the first issued requests and didn't restrict possible redirects. This issue has been fixed in version 5.17.

NVD Source

Technical Analysis

CVE-2026-33440 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.

The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.Low
User InteractionNone
ScopeChanged
Impact
ConfidentialityLow
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/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/8be80625a864c8db5854503872a65e8a0b7399a6
ADVISORYhttps://github.com/WeblateOrg/weblate/security/advisories/GHSA-5fhx-9jwj-867m

All References (2)

→
https://github.com/WeblateOrg/weblate/commit/8be80625a864c8db5854503872a65e8a0b7399a6Patch
→
https://github.com/WeblateOrg/weblate/security/advisories/GHSA-5fhx-9jwj-867mThird Party Advisory

Quick Facts

CVE IDCVE-2026-33440
CVSS Score5.0 / 10
SeverityMEDIUM
WeaknessCWE-918
CISA KEVNo
EPSS (30d)0.03%
Affected1 vendor
PublishedApr 15, 2026

Related CVEs (CWE-918)

CVE-2026-2053
10.0
CVE-2026-26150
10.0
CVE-2026-32169
10.0
CVE-2026-35431
10.0
CVE-2026-26138
10.0
CVE-2026-32186
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-33440 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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