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Vulnerabilities

Vulnerability · CVE-2026-101027

When was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions.

Published Oct 6, 2026 · catalog updated Oct 15, 2026 · When was configured, a

Check if you run it

No confirmed exploitation is on record for CVE-2026-101027. EPSS is 0.17%. Act only if a listed version of When was configured, a is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (When was configured, a).
  • No version range is stored. A customer cannot check an installed version against this record.
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High7.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.17%
Remediation
Advisory link
Affected products
cpe gitea/gitea

When was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions. A user who can start repository migrations and control the DNS of an allowed hostname could make it resolve to loopback or private addresses and bypass , reaching internal services from the Gitea server. Instances without configured are not affected by this specific bypass.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe gitea/giteaversion unspecified

How to fix CVE-2026-101027

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2026-101027. EPSS is 0.17%. Act only if a listed version of When was configured, a is installed.

Which versions are affected?

Affected version ranges are not on this record. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-346. EPSS 0.17%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 6, 2026 · NIST NVD

    Detected

    When was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions. A user who can start repository migrations and control the DNS of an allowed hostname could make it resolve to loopback or private addresses and bypass , reaching internal services from the Gitea server. Instances without configured are not affected by

  2. Oct 15, 2026 · NIST NVD

    Updated

    When was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions. A user who can start repository migrations and control the DNS of an allowed hostname could make it resolve to loopback or private addresses and bypass , reaching internal services from the Gitea server. Instances without configured are not affected by

Sources

  • CVE.orgVulnerability recordCVE-2026-101027

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2026-101027

    30-day exploitation probability 0.2%

    first.org
  • NIST NVDVulnerability recordCVE-2026-101027

    When was configured, a hostname matching the allow list was accepted without checking its resolved address against the local-network restrictions. A user who can start repository migrations and control the DNS of an allowed hostname could make it re

    nvd.nist.gov

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.