CVE-2026-78428 json
Flaw in Neuvector can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently
published last mo. modified last mo. also EUVD-2026-81412 , GHSA-c6rx-pmvf-m3jx
Unreviewed: the maintainers' own advisory
Published by the maintainers on their GitHub repository neuvector/neuvector. GitHub has not reviewed it into the GitHub Advisory Database, so the affected packages and versions are the maintainers' word. Read the full advisory on GitHub.
- cvss
- 8.8
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 19%
- public exploits
- 0
- none known
Summary
For users authenticated through SAML or OpenID Connect (OIDC), this vulnerability can result in one user receiving another user's authenticated session when multiple SSO login attempts occur concurrently
Is CVE-2026-78428 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- last mo.
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H |
| CNA | 4.0 | 8.8 | CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected products
- SUSE neuvector
Classification
- Weakness
-
- CWE-384 Session Fixation
References
-
github.com
/neuvector/neuvector/security/advisories/GHSA-c6rx-pmvf-m3jx
vendor-advisory, advisory
-
bugzilla.suse.com
/show_bug.cgi?id=1279937
issue-tracking
Sources
- CVE List CVE-2026-78428
- NVD CVE-2026-78428
- Maintainer advisory GHSA-c6rx-pmvf-m3jx
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
The maintainers of neuvector/neuvector published their own advisory on GitHub. Reviewed sources take precedence over it.