CVE-2026-16637 OPeNDAP Hyrax SSRF and Credential Disclosure via Unvalidated Redirects
Attackers can exploit unvalidated redirects in OPeNDAP Hyrax to perform SSRF and leak sensitive Earthdata authentication headers to external endpoints.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-16637?
CVE-2026-16637 is a medium-severity server-side request forgery vulnerability in OPeNDAP Inc. hyrax-docker, published on 7 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
OPeNDAP Hyrax allows SSRF and credential disclosure via unvalidated HTTP redirects that bypass the AllowedHosts allowlist and leak Earthdata headers (User-Id, Echo-Token) to attacker-controlled endpoints.
Which versions are affected by CVE-2026-16637?
How do I fix CVE-2026-16637?
No fix has been published for CVE-2026-16637 yet. Limit exposure of the affected software until one is available.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-16637 being exploited?
There is no known exploitation of CVE-2026-16637 in the wild and no public exploit code.
Sources
Also known as GHSA-7c9q-38r9-q62m.