CVE-2026-105849

highpriority · track · 33OT risk · elevatedEPSS 0.003 · 23 %ileUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
0.30% (23rd) EPSS
CVSS 8.3 · high
Is it mine?
4 products
Check your exposure
Who says so?
2 sources
nvd · osv

EPSS · scored 2026-10-26

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, users with ordinary read access to other authentication documents in a collection with useAPIKey enabled can obtain active API keys and exercise the target accounts' permissions until those keys are rotated or disabled. This issue is fixed in versions 3.90.0 and 4.0.0-canary.34.

01

cvss

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

8.3
010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.2–8.3

v3.18.3highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Lprimary · NVD / NIST USexploitability 2.8 · impact 5.5
v4.07.7highCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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
v4.05.2mediumCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/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)
02

ssvc

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

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

04

affected products (4)

Products and version ranges known to be affected.

05

advisories (1)

Vendor and ecosystem advisories describing this.

  • GHSA-238x-w2j9-gwwrPayload vulnerable to API key disclosure through ordinary document reads2026-10-06ghsa · osvUS

    ### Impact Users with read access to other user documents could access their active API keys. An exposed key grants the target account’s permissions until rotated or disabled. You are affected if: - An authentication collection enables `useAPIKey`. - Users have read access to other user documents containing active API keys. ### Patches Users should upgrade payload packages to `>= 3.90.0` or `>= 4.0.0-canary.34`. ### Workarounds Disable `useAPIKey` or restrict users to reading only their own authentication document. Rotate any API key that may have been exposed.

06

sources

Which sources assert this record, and when.

published 2026-10-06modified 2026-10-15
07

references (3) nvd

External citations — patches, advisories, analysis.

scry

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