CVE-2020-28042
unknown
CVSS v3
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CVSS v4 NEW
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VIR risk
—
Description
Signature validation bypass in ServiceStack
Predictions
Exploit likelihood
20%
Patch ETA
—
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
Package impact
| Ecosystem | Package | Vulnerable | Fixed |
|---|---|---|---|
| NuGet | ServiceStack | <5.9.2 | 5.9.2 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2020-28042
- https://github.com/ServiceStack/ServiceStack/commit/540d4060e877a03ae95343c1a8560a26768585ee
- https://forums.servicestack.net/t/servicestack-v5-9-2-released/8850
- https://snyk.io/vuln/SNYK-DOTNET-SERVICESTACK-1035519
- https://www.nuget.org/packages/ServiceStack
- https://www.shielder.it/advisories/servicestack-jwt-signature-verification-bypass
- https://www.shielder.it/blog/2020/11/re-discovering-a-jwt-authentication-bypass-in-servicestack
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.