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Weblate EUVDEUVD-2026-23001

| CVE-2026-33435 HIGH
Relative Path Traversal (CWE-23)
2026-04-15 GitHub_M GHSA-558g-h753-6m33
High
Disputed · 8.0 NVD
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Severity by source

Sources disagree (Low–High)
GitHub Advisory PRIMARY
8.0 HIGH
AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
SUSE
3.1 LOW
AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H

vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.

CVSS VectorGitHub Advisory

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

Lifecycle Timeline

7
Source Code Evidence Fetched
Jul 26, 2026 - 15:22 vuln.today
Analysis Generated
Jul 26, 2026 - 15:22 vuln.today
Patch released
Apr 21, 2026 - 14:10 nvd
Patch available
Patch available
Apr 16, 2026 - 05:29 EUVD
5.17
CVSS changed
Apr 15, 2026 - 19:22 NVD
8.1 (HIGH) 8.0 (HIGH)
EUVD ID Assigned
Apr 15, 2026 - 18:45 euvd
EUVD-2026-23001
CVE Published
Apr 15, 2026 - 18:13 nvd
HIGH 8.0

DescriptionGitHub Advisory

Weblate is a web based localization tool. In versions prior to 5.17, the project backup didn't filter Git and Mercurial configuration files which could lead to remote code execution under certain circumstances. This issue has been fixed in version 5.17. If developers are unable to update immediately, they can limit the scope of the vulnerability by restricting access to the project backup, as it is only accessible to users who can create projects.

AnalysisAI

We need to produce a JSON object for CVE-2026-33435 based on all provided intelligence. The user gave description, CVSS, CWE, EPSS, patch status, tags, CPE, SSVC, references, etc. We must synthesize all into the specified fields.

Let's extract key information:

  • Product: Weblate (web based localization tool)
  • Vulnerability: In versions prior to 5.17, project backup didn't filter Git and Mercurial configuration files, leading to remote code execution under certain circumstances. Fixed in 5.17.
  • CVSS 3.1: AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H (8.0)
  • CWE: CWE-23 (Relative Path Traversal) – but actually from description it's about unsafe inclusion of VCS config files (lack of sanitization of uploaded backup containing .git/config, hooks, etc.). The fix adds filtering of those paths. So it's more an issue of untrusted data used in backup restoration leading to RCE. CWE-23 might be a misclassification; but we'll incorporate the CWE provided.
  • EPSS: 0.33% (56th percentile) – relatively low exploitation probability.
  • SSVC: Exploitation: none, Automatable: no, Technical Impact: total. So no active exploitation, not automatable, total impact. This would prioritize moderately (in SSVC, if exploitation is none, but tech impact total, may still be "attend" but more a "scheduled").
  • Tags: RCE, Weblate
  • CPE: cpe:2.3:a:weblateorg:weblate:*:*:*:*:*:*:*:* (all versions)
  • Affected versions: weblate < 5.17
  • Patch: Available from vendor, fixed in version 5.17. PR #18549 available.
  • References: GitHub advisory, PR diff.
  • Exploit status: No mention of KEV, so not KEV. No public exploit identified. From advisory: reported via HackerOne, but no indication of public exploit or active exploitation. So "no public exploit identified at time of analysis".
  • EPSS low, so unlikely widespread exploitation.
  • CVSS vector indicates AV:N (network), AC:H (high complexity), PR:H (privileges required high), UI:N (no user interaction), S:C (scope changed), C/H, I/H, A/H. This means a high-privi
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Vendor StatusVendor

SUSE

Severity: Low

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EUVD-2026-23001 vulnerability details – vuln.today

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