CVE-2026-71216 Apache SkyWalking: PagerDuty alarm hook transmits the integration routing key over cleartext HTTP
Apache SkyWalking exposes PagerDuty integration routing keys in cleartext HTTP requests, allowing attackers to intercept sensitive credentials.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-71216?
CVE-2026-71216 is a medium-severity vulnerability in Apache SkyWalking, published on 4 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
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.
Weakness: CWE-319
Which versions are affected by CVE-2026-71216?
How do I fix CVE-2026-71216?
No fix has been published for CVE-2026-71216 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-71216 being exploited?
There is no known exploitation of CVE-2026-71216 in the wild and no public exploit code.
Sources
Also known as GHSA-f684-fh59-2gh3.