Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via…
Priority HIGH 82CWE-863Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and GitHub. Impact type from CWE-863.
Summary
Authentication vulnerability in MOSN v.0.23.0 allows attacker to escalate privileges via case-sensitive JWT authorization.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00946 61st percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed mosn.io/mosn (Go): 0.23.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | mosn.io/mosn (Go) | before 0.23.0 | 0.23.0 | Patch available | GHSA-5vx9-j5cw-47vq |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- mosn.io/mosn (Go) Vendor— Affected before 0.23.0 Fixed in 0.23.0 Patch available GHSA-5vx9-j5cw-47vq
Remediation
- Fix · GHSA-5vx9-j5cw-47vq mosn.io/mosn (Go) Fixed in 0.23.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2021-32163
- 2026-10-03 Alias added: GHSA-5vx9-j5cw-47vq
References
Sources
- CVE-2021-32163 · CVE Program
- CVE-2021-32163 · NVD
- FIRST EPSS
- GHSA-5vx9-j5cw-47vq · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences