CVE-2026-105846Published

Payload: Untrusted redirect URL parameter exploit

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2026-105846

Published

Payload is a free and open source headless content management system. In versions from 3.40.0 before 3.88.0 and canary versions before 4.0.0-canary.27, an attacker can craft a redirect URL parameter that sends a guest user to an untrusted destination after the authentication flow completes. This issue is fixed in versions 3.88.0 and 4.0.0-canary.27.

Source published: 6 Oct 2026 16:01:30 UTC
Source modified: 6 Oct 2026 17:39:36 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

euvd · EUVD-2026-93488

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Oct 6, 2026, 4:01:30 PM

dateUpdated: Oct 6, 2026, 5:39:36 PM

Source published: Oct 6, 2026, 4:01:30 PM (timezone not stated)
Source modified: Oct 6, 2026, 5:39:36 PM (timezone not stated)
Observed here: 9 Nov 2026 05:05:41 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

nvd · CVE-2026-105846

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-601

Original publisher date fields

published: 2026-10-06T17:17:19.967

lastModified: 2026-10-15T00:13:53.530

28 source CPE criteria · context only

cpe:2.3:a:payloadcms:payload:*:*:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary0:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary1:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary10:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary11:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary12:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary13:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary14:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary15:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary16:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary17:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary18:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary19:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary2:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary20:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary21:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary22:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary23:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary24:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary25:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary26:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary3:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary4:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary5:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary6:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary7:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary8:*:*:*:node.js:*:*
cpe:2.3:a:payloadcms:payload:4.0.0:canary9:*:*:*:node.js:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 6 Oct 2026 17:17:19 UTC
Source modified: 15 Oct 2026 00:13:53 UTC
Observed here: 25 Oct 2026 04:17:29 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 3.1 · [email protected] · Secondary · 6.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

osv · GHSA-w84c-53h3-mc2g

Published

### Impact Under certain conditions, an attacker can craft a redirect link that sends a guest user to an untrusted destination after authenticating. ### Patches Users should upgrade Payload packages to `>= 3.88.0` or `>= 4.0.0-canary.27`. ### Workarounds Upgrading is recommended. Until then, remove user-controlled redirect values from authentication flows or restrict them to known local paths.

Source published: 6 Oct 2026 16:09:13 UTC
Source modified: 6 Oct 2026 16:15:05 UTC
Observed here: 24 Oct 2026 13:17:17 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Publisher rating · MODERATE