GG18 / GG20 TSS Beta Parameter Vulnerability
Priority MEDIUM 45CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA.
Summary
Crypto wallets implementing the GG18 or GG20 TSS protocol might allow an attacker to extract a full ECDSA private key by injecting a malicious pallier key and cheating in the range proof. Depending on the Beta parameters chosen in the protocol implementation, the attack might require 16 signatures or more fully exfiltrate the other parties' private key shares.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01183 67th percentileScored 2026-11-07
Public exploit Yes 4 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
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 |
|---|---|---|---|---|---|
| GG TSS Implementations | Wallet | 18; 20 | — | No fix listed | CNA |
- Wallet VendorGG TSS Implementations Affected 18; 20 Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gg18_project:gg18:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Gg18 Project |
| cpe:2.3:a:gg20_project:gg20:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | Gg20 Project |
- cpe:2.3:a:gg18_project:gg18:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Gg18 Project
- cpe:2.3:a:gg20_project:gg20:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Gg20 Project
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2023-33241
- 2026-10-03 Alias added: GHSA-5cjx-95fx-68q9
References
Sources
- CVE-2023-33241 · CVE Program
- CVE-2023-33241 · NVD
- FIRST EPSS
- GHSA-5cjx-95fx-68q9 · GitHub Advisory Database · CC BY 4.0
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