CVE-2026-105854: high-severity vulnerability in payloadcms payload
Payload: ReDoS in Multipart Content-Type Validation
Published
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.7epss 0.3%
exploitation probability
0.3%top 78% of all CVEs
observed exploitation
nono source reports it
Payload is a free and open source headless content management system. In versions from 3.0.0 before 3.90.0 and canary versions before 4.0.0-canary.34, a malformed multipart request body can cause multipart Content-Type processing to take an extremely long time, resulting in uncontrolled resource consumption. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
Affected products
payloadcms · payloadRelated 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-2026-105844CRITICALPayload: Prototype pollution in Payload Import Export pluginEPSS 0.5%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%