CVE-2026-78426
3.7
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N
Summary
The NeuVector JWT verifier accepts noncanonical Base64URL encodings of the same RSA signature field. An attacker holding a valid JWT that has not expired, but was logged out of NeuVector, can continue using the non-expired token with equivalent spelling of the RSA signature field until the token validity expires.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| go | neuvector | 0 <= v5.6.1 | affected |
Weaknesses
- CWE-863: CWE-863 Incorrect Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://github.com/neuvector/neuvector/security/advisories/GHSA-wcx5-mq6c-c54j
- https://bugzilla.suse.com/show_bug.cgi?id=CVE-2026-78426
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