CVE-2026-105844: critical vulnerability in payloadcms payload
Payload: Prototype pollution in Payload Import Export plugin
Published
48Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 9.3epss 0.5%
from disclosure to weapon1 days
Published on NVDOct 6
1st PoC+1d
exploitation probability
0.5%top 58% of all CVEs
observed exploitation
nono source reports it
1 public exploit(s)
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an unauthenticated user can submit prototype-sensitive field paths when @payloadcms/plugin-import-export is enabled, causing unintended application behavior that can lead to remote code execution. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
public PoCs found — 1
githubgithub.com/murrez/CVE-2026-105844★ 0⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — payloadcms payload
In the same product, most dangerous first.
CVE-2026-25544CRITICALPayload has an SQL Injection in JSON/RichText Queries on PostgreSQL/SQLite AdaptersEPSS 1.0%CVE-2023-30843HIGHPayload's hidden fields can be leaked on readable collectionsEPSS 0.6%CVE-2026-105858HIGHPayload: Remote Code Execution through first-registerEPSS 0.5%CVE-2026-105857CRITICALPayload: RCE in Payload Form BuilderEPSS 0.4%CVE-2026-34751CRITICALPayload has Unvalidated Input in Password Recovery EndpointsEPSS 0.4%CVE-2026-27567MEDIUMPayload has Server-Side Request Forgery (SSRF) in External File URL UploadsEPSS 0.4%