CVE-2026-105854

highpriority · track · 30EPSS 0.004 · 29 %ileUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.35% (29th) EPSS

CVSS 7.5 · high

Is it mine?

4 products

Check your exposure

Who says so?

2 sources

nvd · osv

EPSS · scored 2026-10-27

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

Technical severity, 0–10. One row per scoring source.

8.7

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v4.08.7highCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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:Xsecondary · security-advisories@github.com

v4.06.6mediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/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:Xsecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-1333USCWE-1333USCWE-400USCWE-400US

affected products (4)

Products and version ranges known to be affected.

payloadcms payload3.0.0 → 3.90.0nvdUScpe:2.3:a:payloadcms:payload:*:*:*:*:*:*:*:*
payloadcms payload= 4.0.0nvdUScpe:2.3:a:payloadcms:payload:*:*:*:*:*:*:*:*
npm payload3.0.0 → 3.90.0osvUSpkg:npm/payload
npm payload4.0.0-canary.0 → 4.0.0-canary.34osvUSpkg:npm/payload

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-2g7p-5934-q4w7Payload: ReDoS in Multipart Content-Type Validation2026-10-06ghsa · osvUS
## Impact A malformed multipart request body could take an extremely long time to finish. ## Patches Users should upgrade Payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`.

sources

Which sources assert this record, and when.

nvd osv NVD CVE.org MITRE

published 2026-10-06modified 2026-10-15

references (3) nvd

External citations — patches, advisories, analysis.

https://github.com/payloadcms/payload/commit/0084bd51fb7742b26a88431bb84cb1696857e6dcPatch
https://github.com/payloadcms/payload/releases/tag/v3.90.0PatchRelease Notes
https://github.com/payloadcms/payload/security/advisories/GHSA-2g7p-5934-q4w7Vendor Advisory

scry

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