---
id: CVE-2026-71216
title: >-
  PagerDuty alarm hook transmits the integration routing key over cleartext
  HTTP.




  PagerDuty serves this endpoint over HTTPS and will

  normally answer plain HTTP with a redirect
summary: >-
  PagerDuty alarm hook transmits the integration routing key over cleartext
  HTTP.




  PagerDuty serves this endpoint over HTTPS and will

  normally answer plain HTTP with a redirect. That does not remove the exposure.

  The initial POST -- incl…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'
cwe:
  - CWE-319
vendor: Apache Software Foundation
product: Apache SkyWalking
affected:
  - apache_skywalking >= 9.6.0 <= 11.0.0
published: '2026-09-04'
updated: '2026-09-08'
sourceUpdated: '2026-09-08T15:18:44.817'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-71216'
references:
  - url: 'https://lists.apache.org/thread/ktfk9p59p89lqk4zdq0twk6nj6ssnsfk'
    label: security@apache.org
  - url: 'http://www.openwall.com/lists/oss-security/2026/09/04/1'
    label: af854a3a-2127-422b-91ae-364da2661108
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-08T14:40:25.719618Z'
epss: 0.00216
epssPercentile: 0.10637
ingestedAt: '2026-09-08T15:33:26.959Z'
---

## Overview

PagerDuty alarm hook transmits the integration routing key over cleartext HTTP.



PagerDuty serves this endpoint over HTTPS and will
normally answer plain HTTP with a redirect. That does not remove the exposure.
The initial POST -- including the JSON body containing the routing key -- is
written to the socket unencrypted before any redirect response is received.
Redirection affects only whether the request is retried securely, not whether
the first copy left the host in the clear.



This issue affects Apache SkyWalking: from 9.6.0 through 11.0.0.



Users are recommended to upgrade to version 11.0.0, which fixes the issue.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.