CVE-2026-105866 json
Payload: Unauthenticated account-lockout denial of service
published last mo. modified 26d ago also EUVD-2026-93512 , GHSA-v5gf-vpjc-pc7w
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.4%
- EPSS 0.4% chance of exploitation in 30 days, percentile 30%
- public exploits
- 0
- none known
Summary
Payload is a free and open source headless content management system. In versions before 3.90.0 and canary versions before 4.0.0-canary.34, an unauthenticated attacker who knows an account email address or username can abuse the account lockout mechanism of a local-authentication collection to prevent that account from signing in. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
Patch / fix
- npm payload 3.90.0, 4.0.0-canary.34
- payloadcms payload 3.90.0, 4.0.0-canary.34
Is CVE-2026-105866 in your dependencies? 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
- yes
- Technical impact
- partial
- Assessed
- last mo.
Exploit prediction
0.37% chance of exploitation in the next 30 days, higher than 30% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| CNA | 4.0 | 6.9 | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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 |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | payload | <3.90.0 >=4.0.0-canary.0, <4.0.0-canary.34 |
3.90.0 4.0.0-canary.34 |
Affected products
- payloadcms payload
Classification
References
-
github.com
/payloadcms/payload/commit/1c46204a73a0a9f988a80c52690eee5a4ada3cf1
web, patch
-
github.com
/payloadcms/payload/releases/tag/v3.90.0
web, patch, release-notes
-
github.com
/payloadcms/payload/security/advisories/GHSA-v5gf-vpjc-pc7w
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2026-105866
advisory
-
github.com
/payloadcms/payload
package
Sources
- CVE List CVE-2026-105866
- GitHub Advisory GHSA-v5gf-vpjc-pc7w
- NVD CVE-2026-105866
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.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.