CVE-2026-55986Public exploitNetwork attack vector

Authenticated email changes via missing API authorization

Published Aug 13, 2026 · Updated Aug 13, 2026

Authorization bypass in Gitea 1.26.4 and earlier allows remote authenticated users to add or remove account email addresses via the API. The POST and DELETE handlers in routers/api/v1/user/email.go omit the UserFeatureManageCredentials check applied by the web interface. Exploitation requires an externally authenticated account and an administrator-disabled credential-management setting, and it defeats centralized control of that account's email addresses.

CVSS severity5.4
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Gitea 1.26.4 and earlier allows remote authenticated users to add or remove account email addresses via the API. The POST and DELETE handlers in routers/api/v1/user/email.go omit the UserFeatureManageCredentials check applied by the web interface. Exploitation requires an externally authenticated account and an administrator-disabled credential-management setting, and it defeats centralized control of that account's email addresses.

The record

CVE
CVE-2026-55986
Published
Aug 13, 2026
Updated
Aug 13, 2026
Vendor
Gitea
Product
Gitea
Classifications
CWE-284
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 13, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 13, 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 <=1.26.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Gitea · Giteaversion=0 <=1.26.4

Published CVSS scores

5.4CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-284Improper Access Control

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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