Access control flaw in Convex exposes deployment information
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-284.
Summary
The convex-backend package from get-convex is affected before precompiled-2026-08-10-c0cb7ae. An improper access control flaw (CWE-284) lets a malicious user in rare cases read deployment information from a Convex deployment without authorization. The attacker needs no privileges but requires user interaction, and no evidence of exploitation is known.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Convex is an open-source reactive database for application developers. Prior to the self-hosted image published on August 10, 2026 and local deployment binary precompiled-2026-08-10-c0cb7ae, a malicious user can, in rare cases, perform unauthorized reading of deployment information from a Convex deployment. The maintainer has intentionally withheld the affected component and technical mechanism to protect self-hosted deployments that have not been updated, and no evidence of exploitation is known. Convex cloud deployments were patched automatically. This issue is fixed in the self-hosted image published on August 10, 2026 and local binary precompiled-2026-08-10-c0cb7ae.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| get-convex | convex-backend | < precompiled-2026-08-10-c0cb7ae | — | No fix listed | CNA |
- convex-backend Vendorget-convex Affected < precompiled-2026-08-10-c0cb7ae Fixed in — No fix listed CNA
Remediation
Update self-hosted deployments to the self-hosted image published on 2026-08-10 or the local binary precompiled-2026-08-10-c0cb7ae, which fix the flaw. Convex cloud deployments were patched automatically.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-12 Threatist record created from CVE-2026-97691
- 2026-10-16 CISA SSVC decision points changed
References
Sources
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences