What is GHSA-9vvr-fpgq-p9gc?

GHSA-9vvr-fpgq-p9gc is a security advisory published by GitHub Security Advisories with Medium severity. Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability...

Which CVE IDs does GHSA-9vvr-fpgq-p9gc cover?

GHSA-9vvr-fpgq-p9gc covers the following CVE IDs: CVE-2026-119131. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of GHSA-9vvr-fpgq-p9gc?

GHSA-9vvr-fpgq-p9gc has a CVSS v3 base score of 5.3, published by GitHub Security Advisories.

GHSA-9vvr-fpgq-p9gcMediumCVSS 5.3

Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability...

Vendor

GitHub Security Advisories

Published

October 29, 2026

Last Modified

October 29, 2026

🔗 CVE IDs covered (1)

CVE-2026-119131 →

📋 Description

Wasmtime 46.0.0 before 48.0.6 and 49.0.0 before 49.0.3 contains a denial of service vulnerability in wasmtime-wasi-http that lets guests crash the host by sending long request URLs. Guests can use set-path-with-query with a '?' after byte 65535, overflowing a u16 index in the http crate and triggering a host panic.

🔗 References (4)

https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-w36r-2hch-9xp9
https://nvd.nist.gov/vuln/detail/CVE-2026-119131
https://www.vulncheck.com/advisories/wasmtime-46.0.0-before-48.0.6-and-49.0.0-before-49.0.3-host-panic-via-wasi-http
https://github.com/advisories/GHSA-9vvr-fpgq-p9gc