CVE-2026-34393

HIGHNVD 8.88.8—

8.8

Weblate is a web based localization tool. In versions prior to 5.17, the user patching API endpoint didn't properly limit the scope of edits. This issue has been fixed in version 5.17.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 3.7%
KEV: Not listed

Published

April 15, 2026

Last Modified

April 21, 2026

Advisory Details (2)

Auto-updated May 2, 2026

Patch available. Sources: github.

github Patch Available

Privilege escalation in the user API endpoint · Advisory · WeblateOrg/weblate · GitHub

https://github.com/WeblateOrg/weblate/security/advisories/GHSA-3382-gw9x-477v

generic

fix(api): improve fields access control by nijel · Pull Request #18687 · WeblateOrg/weblate · GitHub

https://github.com/WeblateOrg/weblate/pull/18687

Affected Packages

(1 across 1 ecosystem)

PyPI(1)

Package	Vulnerable range	Fixed in	Dependents
weblate	1.9 ... 5.9.2 (163 versions)	5.17	—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-269Improper Privilege Management

Data Freshness Timeline

(refreshed 16× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
2026-05-31 22:30 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-31 00:16 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-29 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-28 13:44 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-27 13:40 UTCepss_batch
2026-05-26 13:44 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-26 07:18 UTCepss_batch
2026-05-23 00:08 UTCEG score recompute
2026-05-20 22:38 UTCepss_batch
2026-05-20 22:38 UTCepss_batch
2026-05-20 17:07 UTCEG score recompute

Frequently asked(5)

What is CVE-2026-34393?

CVE-2026-34393 is a high vulnerability published on April 15, 2026. Weblate is a web based localization tool. In versions prior to 5.17, the user patching API endpoint didn't properly limit the scope of edits. This issue has been fixed in version 5.17.

When was CVE-2026-34393 disclosed?

CVE-2026-34393 was first published in the National Vulnerability Database on April 15, 2026, with the most recent update on April 21, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2026-34393 actively exploited?

CVE-2026-34393 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 3.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2026-34393?

CVE-2026-34393 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2026-34393?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34393, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-34393

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CVE-2026-34393

📅 Published

🔄 Last Modified

📋 Advisory Details (2)