CVE-2026-78426

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Source
https://cve.org/CVERecord?id=CVE-2026-78426
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78426.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-78426
Aliases
  • GHSA-wcx5-mq6c-c54j
Published
2026-09-17T09:28:19Z
Modified
2026-09-20T11:30:57Z
Severity
  • 3.7 (Low) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Logout bypass via alternate JWT spelling
Details

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.

Database specific 
{
    "cna_assigner":  "suse",
    "cwe_ids":  [
        "CWE-863"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/78xxx/CVE-2026-78426.json"
}
References

Affected packages

Git / github.com/neuvector/neuvector

Affected ranges

Type
GIT
Repo
https://github.com/neuvector/neuvector
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Last Affected
c13b2f609e6c04276994439d60072caeb0dcf3d9
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "last_affected":  "v5.6.1"
        }
    ],
    "source":  "AFFECTED_FIELD"
}

Affected versions

controller/k8sapi/v1.*
controller/k8sapi/v1.0.0
v5.*
v5.0.0-b1
v5.0.0-b2
v5.0.0-preview.1
v5.0.0-preview.2
v5.0.0-preview.3
v5.1.0-rc1
v5.1.1
v5.1.1-b1
v5.2.0
v5.2.0-b1
v5.2.0-s1
v5.2.2-b1
v5.2.2-b2
v5.3.0-b1
v5.3.0-b2
v5.3.0-b3
v5.3.1-b1
v5.3.3-b1
v5.4.0-b1
v5.4.0-b1-bci
v5.4.0-b2
v5.4.0-b2-alpine
v5.4.0-b3
v5.4.1-alpha
v5.4.3-rc1
v5.4.3-rc2
v5.4.4
v5.4.4-rc1
v5.4.4-rc2
v5.4.5
v5.4.5-rc1
v5.4.5-rc2
v5.4.6-rc1
v5.4.7-rc1
v5.4.7-rc2
v5.4.8
v5.4.8-rc1
v5.4.8-rc2
v5.4.8-rc3
v5.4.9
v5.4.9-rc1
v5.4.9-rc2
v5.4.9-rc3
v5.5.0
v5.5.0-rc1
v5.5.0-rc2
v5.5.0-rc3
v5.5.0-rc4
v5.5.1-rc2
v5.5.1-rc3
v5.5.1-rc4
v5.6.0
v5.6.0-rc1
v5.6.0-rc3
v5.6.0-rc4
v5.6.1
v5.6.1-rc3
v5.6.1-rc4
v8040.*
v8040.1
vcilium.*
vcilium.1
veg.*
veg.1
vlogvul.*
vlogvul.1
vnsprune.*
vnsprune.1
voc415.*
voc415.1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-78426.json"