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CRITICAL severity

CVE-2022-47931 — tss-lib

CRITICALFix: bnb-chain/tss-lib#233

CVE-2022-47931 is a critical-severity (CVSS 9.1) CWE-326 vulnerability in github.com/bnb-chain/tss-lib. A fix is available for github.com/bnb-chain/tss-lib — see the affected versions and patch details below.

Collision of hash values in github.com/bnb-chain/tss-lib

Also known asGO-2023-1904
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 1, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

  • CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2022-47931.

EPSS Exploitation Probability

via FIRST.org ↗
0.5%probability of exploitation in next 30 days
Lower Risk+0.04%
Lower risk than most CVEs42th percentile — riskier than 42% of all scored CVEsHighest risk
0.00%0.33%0.66%0.99%0.2%0.5%May 26Aug 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐹github.com/bnb-chain/tss-lib

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

IO FinNet tss-lib before 2.0.0 allows a collision of hash values.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/bnb-chain/tss-liball versions1.3.6-0.20230324145555-bb6fb30bd3ebgo get github.com/bnb-chain/tss-lib@v1.3.6-0.20230324145555-bb6fb30bd3eb

Affected Products

1 product · 1 configurations
Application
tss-libiofinnet
< 2.0.0
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/bnb-chain/tss-lib, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update github.com/bnb-chain/tss-lib to 1.3.6-0.20230324145555-bb6fb30bd3eb or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-47931 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

Frequently Asked Questions

IO FinNet tss-lib before 2.0.0 allows a collision of hash values.
O3 Security · Impact-Aware SCA

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CVE-2022-47931: tss-lib — Fix Available