VulnSocial

CVE-2026-108699

LOWCVSS 8.3 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

hyper-mcp through 0.8.3 contains an improper signature verification vulnerability that allows attackers to load malicious WebAssembly plugins because cosign_verify_args() accepts any signer identity and OIDC issuer by default. Attackers controlling a plugin image reference can sign a malicious image with a free Sigstore keyless certificate to execute plugins with configured host, filesystem, and environment capabilities.

Back to dashboard
0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-347

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-10-12: 110-12
Referenced assets1 URL
By indicator
Full discourse1 post
  • AI Cyber Brief@justelite

    hyper-mcp through 0.8.3: Cosign defaults accept any Sigstore keyless signer (CVE-2026-108699) and verify a re-resolved tag, not the loaded digest (CVE-2026-108698). No fix. Pin plugins by digest and lock cert identity—or treat the check as theater. https://www.cve.org/CVERecord?id=CVE-2026-108699

    1001011
    1.7K followersView on X

Explore more

Back to dashboard