CVE-2026-52796Public exploitNetwork attack vector

Repository page denial of service via malformed template

Published Jun 24, 2026 · Updated Jun 24, 2026

Denial of service in issue reference rendering in Gogs before 0.14.3 allows remote authenticated users to make repository pages unavailable. RenderIssueIndexPattern passes the configured external tracker format to com.Expand, which slices at a missing closing brace and panics. Exploitation requires permission to set that format and a user to load a page containing an issue reference; the outage is repository-scoped.

CVSS severity3.5
Low
EPSS probability0.28%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in issue reference rendering in Gogs before 0.14.3 allows remote authenticated users to make repository pages unavailable. RenderIssueIndexPattern passes the configured external tracker format to com.Expand, which slices at a missing closing brace and panics. Exploitation requires permission to set that format and a user to load a page containing an issue reference; the outage is repository-scoped.

The record

CVE
CVE-2026-52796
Published
Jun 24, 2026
Updated
Jun 24, 2026
Vendor
Gogs
Product
Gogs
Classifications
CWE-1336, T1499.004
Attack vector
network
Privileges
authenticated

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

Compare your product and version with the public record. A matching version still requires validation against your environment.

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 privilegesauthenticated

What is affected?

Gogs · Gogsversion=< 0.14.3

Published CVSS scores

3.5GitHub, Inc.CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-1336Improper Neutralization of Special Elements Used in a Template Engine
T1499.004Application or System Exploitation

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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