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Weblate EUVDEUVD-2026-23002

| CVE-2026-33440 MEDIUM
Server-Side Request Forgery (SSRF) (CWE-918)
2026-04-15 GitHub_M GHSA-5fhx-9jwj-867m
5.0
CVSS 3.1 · Vendor: GitHub_M
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Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK

2 techniques across 2 tactics: Initial Access, Credential Access

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 27, 2026

Server-Side Request Forgery in Weblate prior to version 5.17 allows authenticated users to bypass the ALLOWED_ASSET_DOMAINS allowlist via HTTP redirects, forcing the server to request unintended hosts. This can lead to low confidentiality impact through information disclosure. The vulnerability is fixed in version 5.17, and no public exploit or active exploitation has been identified.

Affected VersionsENISA

weblate < 5.17

Affected Packages

pypi weblate fix: 5.17

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in pypi

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

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  • Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

Vendor (GitHub_M) PRIMARY 5.0 MEDIUM
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N
SUSE 3.1 LOW
AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:N/A:N

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
Low
Integrity
None
Availability
None

Lifecycle Timeline

3
Patch released
Apr 21, 2026 - 14:09 nvd
Patch available
Patch available
Apr 16, 2026 - 05:29 EUVD
5.17
CVE Published
Apr 15, 2026 - 18:15 nvd
MEDIUM 5.0

DescriptionCVE.org

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.

Threat Intelligence Overview

EPSS Score
0.0%
Top 93% exploitable
Threat Intel
1
1 source
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment GHSA Vendor GitHub

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

25
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +25
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.

CVE-2025-68398 CRITICAL
9.1 Dec 18

Improper input validation in Weblate versions prior to 5.15.1 lets a user who can submit translation files or restore pr

CVE-2026-34393 HIGH
8.8 Apr 15

Privilege escalation in Weblate versions prior to 5.17 allows an authenticated low-privileged user to modify sensitive f

CVE-2022-23915 HIGH
8.8 Mar 04

The package weblate from 0 and before 4.11.1 are vulnerable to Remote Code Execution (RCE) via argument injection when u

CVE-2026-86035 HIGH
8.5 Sep 29

Argument injection in Weblate's Mercurial backend lets an authenticated user with project-scoped component.edit permissi

CVE-2026-55228 HIGH
8.1 Aug 26

Weblate's REST API failed to enforce permission scope on team (group) assignments in all versions prior to 2026.7, allow

CVE-2026-33435 HIGH
8.0 Apr 15

Remote code execution in Weblate's project backup restoration affects versions prior to 5.17, exploitable by authenticat

CVE-2026-23535 HIGH
8.0 Jan 16

The wlc Weblate command-line client prior to version 1.17.2 is vulnerable to arbitrary file write attacks through path t

CVE-2026-61792 HIGH
7.7 Aug 26

Arbitrary file read via symlink traversal in Weblate's App store metadata ZIP download affects all versions prior to 202

CVE-2026-34242 HIGH
7.7 Apr 15

Arbitrary file read vulnerability in Weblate versions prior to 5.17 allows authenticated attackers to read sensitive fil

CVE-2026-21889 HIGH
7.5 Jan 14

Weblate versions prior to 5.15.2 expose screenshot images through the web server without authentication controls, enabli

CVE-2026-33220 MEDIUM
6.8 Apr 15

Path traversal in Weblate allows authenticated users to read arbitrary files outside the repository via the translation

CVE-2026-24126 MEDIUM
6.6 Feb 19

Weblate versions up to 5.16.0 contains a vulnerability that allows attackers to an argument injection to `ssh-add` (CVSS

Vendor StatusVendor

SUSE

Severity: Low

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