CVE-2026-52799Public exploitNetwork attack vector

Attachment disclosure via unchecked UUID lookup

Published Jun 24, 2026 · Updated Jun 24, 2026

Missing authorization in Gogs before 0.14.3 allows remote attackers to read private-repository attachments via a known attachment UUID. The GET /attachments/:uuid handler looks up an attachment solely by its URL UUID and streams the local file without checking access to its parent issue, comment, release, or repository. Unauthenticated access requires REQUIRE_SIGNIN_VIEW=false; otherwise any signed-in user with the UUID can read the file without repository access.

CVSS severity7.5
High
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Gogs before 0.14.3 allows remote attackers to read private-repository attachments via a known attachment UUID. The GET /attachments/:uuid handler looks up an attachment solely by its URL UUID and streams the local file without checking access to its parent issue, comment, release, or repository. Unauthenticated access requires REQUIRE_SIGNIN_VIEW=false; otherwise any signed-in user with the UUID can read the file without repository access.

The record

CVE
CVE-2026-52799
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Gogs
Product
Gogs
Classifications
CWE-862, CWE-639, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 24, 2026CVE publishedPublication date reported by the CVE source.
  2. Jun 24, 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=< 0.14.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Gogs · Gogsversion=< 0.14.3

Published CVSS scores

7.5GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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 exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
CWE-639Authorization Bypass Through User-Controlled Key
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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