What’s Vulnerable › Vulnerabilities

CVE-2026-88939: knowns through 0.33.0 Authorization Bypass via project.set Bootstrap Exemption

• Severity: high (CVSS 8.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-10 · updated 2026-09-15
• Weakness: CWE-863

Description

knowns through 0.33.0 exempts the project.set action from permission guard checks unconditionally, allowing read-only agent sessions to bypass restrictions. Attackers can invoke project.set to repoint the server at another project directory and obtain write access capabilities.

Affected products

• knowns-dev knowns: through 0.33.0

References

• https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/guard.go#L104-L113
• https://github.com/knowns-dev/knowns/blob/v0.33.0/internal/permissions/registry.go#L51-L54
• https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg
• https://www.vulncheck.com/advisories/knowns-through-0.33.0-authorization-bypass-via-project-set-bootstrap-exemption
• https://github.com/knowns-dev/knowns/security/advisories/GHSA-h73x-698r-qrvg

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