Is there a public exploit for CVE-2026-119131?

No public exploit for CVE-2026-119131 was found in Exploit-DB, Metasploit, Nuclei templates or public proof-of-concept repositories. That is an absence of evidence rather than proof that none exists.

How severe is CVE-2026-119131?

CVE-2026-119131 scores CVSS 6.9 (v4.0), rated medium. EPSS puts the chance of exploitation in the next 30 days at 0.3%.

What does CVE-2026-119131 affect?

CVE-2026-119131 affects bytecodealliance wasmtime.

6.9 Medium

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…

CVE-2026-119131

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.

Assessment

CVSS: 6.9 (v4.0)
Severity: Medium
EPSS: 0.3% chance of exploitation in the next 30 days
Known exploited: Not listed in CISA KEV
Exploit availability: Nothing found in Exploit-DB, Metasploit, Nuclei or public PoC repositories
Published: 29 October 2026
Last updated: 4 November 2026
Affected: bytecodealliance · wasmtime
Assigner: VulnCheck

CVSS vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

At the source

EUVD (ENISA)

References

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