CVE-2026-61795Public exploitNetwork attack vector

Tenant Ingress denial via stale regex validation

Published Sep 18, 2026 · Updated Sep 18, 2026

Denial of service in Capsule 0.13.0 through 0.13.6 allows remote authenticated users to block a tenant's Ingress operations. hostnameRegexHandler.OnUpdate reverses its new and old Tenant parameters, validates the previous AllowedHostnames.Regex, and persists a malformed replacement. Cluster-administrator access is required; later Ingress requests treat the invalid pattern as unmatched until the Tenant is repaired.

CVSS severity6.8
Medium
EPSS probability0.59%
Next 30 days · Oct 20, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Capsule 0.13.0 through 0.13.6 allows remote authenticated users to block a tenant's Ingress operations. hostnameRegexHandler.OnUpdate reverses its new and old Tenant parameters, validates the previous AllowedHostnames.Regex, and persists a malformed replacement. Cluster-administrator access is required; later Ingress requests treat the invalid pattern as unmatched until the Tenant is repaired.

The record

CVE
CVE-2026-61795
Published
Sep 18, 2026
Updated
Sep 18, 2026
Vendor
Project Capsule
Product
Capsule
Classifications
CWE-697, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Sep 18, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 18, 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=>= 0.13.0, < 0.13.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Project Capsule · Capsuleversion=>= 0.13.0, < 0.13.7

Published CVSS scores

6.8GitHubCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:N/I:N/A:H

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.

Activity data is delayed. The latest report is Sep 28, 2026.

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

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-697Incorrect Comparison
T1499Endpoint Denial of Service

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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