CVE-2026-77507Network attack vectorHinoki check available

Private change-history disclosure via unfiltered RSS feeds

Published Aug 26, 2026 · Updated Aug 27, 2026

Missing authorization in Weblate before 2026.8 allows remote attackers to read private change-history metadata through object-scoped RSS feeds. ObjectChangesFeed.items reads each object's raw change set instead of calling the permission-aware Change.objects.last_changes query with the requesting user. Anonymous access removes the authentication gate; otherwise, authenticated accounts can receive metadata for inaccessible private projects or restricted components, but translated-string content is not exposed.

CVSS severity5.3
Medium
EPSS probability0.24%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Missing authorization in Weblate before 2026.8 allows remote attackers to read private change-history metadata through object-scoped RSS feeds. ObjectChangesFeed.items reads each object's raw change set instead of calling the permission-aware Change.objects.last_changes query with the requesting user. Anonymous access removes the authentication gate; otherwise, authenticated accounts can receive metadata for inaccessible private projects or restricted components, but translated-string content is not exposed.

The record

CVE
CVE-2026-77507
Published
Aug 26, 2026
Updated
Aug 27, 2026
Vendor
Weblate
Product
Weblate
Classifications
CWE-863, CWE-200, CWE-862
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 26, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 2026.8

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Weblate · Weblateversion=< 2026.8

Published CVSS scores

5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-863Incorrect Authorization
CWE-200Exposure of Sensitive Information to an Unauthorized Actor
CWE-862Missing Authorization

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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