What is GHSA-h2w4-jr6m-7c52?

GHSA-h2w4-jr6m-7c52 is a security advisory published by GitHub Security Advisories with Medium severity. Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook...

Which CVE IDs does GHSA-h2w4-jr6m-7c52 cover?

GHSA-h2w4-jr6m-7c52 covers the following CVE IDs: CVE-2026-56708. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-h2w4-jr6m-7c52?

GHSA-h2w4-jr6m-7c52 has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-h2w4-jr6m-7c52MediumCVSS 5.3

Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook...

Vendor

GitHub Security Advisories

Published

August 25, 2026

Last Modified

August 25, 2026

🔗 CVE IDs covered (1)

CVE-2026-56708 →

📋 Description

Grav API plugin before 1.0.16 contains a server-side request forgery vulnerability in webhook delivery that allows attackers to bypass hostname validation by DNS rebinding. Attackers controlling authoritative DNS for a configured webhook hostname can answer validation lookups with public addresses and delivery lookups with private addresses to reach internal network resources.

🔗 References (4)

https://github.com/getgrav/grav/security/advisories/GHSA-hq2v-cgw4-fw2w
https://nvd.nist.gov/vuln/detail/CVE-2026-56708
https://www.vulncheck.com/advisories/grav-api-plugin-before-ssrf-via-dns-rebinding
https://github.com/advisories/GHSA-h2w4-jr6m-7c52