CVE-2026-105861: Payload is a free and open source headless content management system

Q: How do I fix CVE-2026-105861?

payload: upgrade to 3.90.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-105861 being exploited?

CVE-2026-105861 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-105861 affect?

CVE-2026-105861 affects payload. Severity is high (CVSS 8.2). Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not veri

Routine

HIGH 8.2UPGRADE

CVE-2026-105861 is a high-severity flaw (CVSS 8.2) affecting payload. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not verified as trusted, potentially exposing a valid session to an unintended recipient. This issue is fixed in version 3.90.0.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.2 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.1% (top 97%)
CISA exploited list	No
Weakness	CWE-200, CWE-346
Published	2026-10-06
Last modified	2026-10-15

Publisher (CNA): GitHub, Inc. · Vendor: payloadcms

Last updated 2026-10-15 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-06 17:17 UTCPublished CVE record published
2026-10-15 00:09 UTCUpdated Record last modified

payloadcms payload UPGRADE

Affected: >= 3.0.0 and < 3.90.0 · 4.0.0 canary0 · 4.0.0 canary1 · 4.0.0 canary10 · 4.0.0 canary11 · 4.0.0 canary12 · 4.0.0 canary13 · 4.0.0 canary14

Fixed in: 3.90.0

Safe to downgrade to: a release before 3.0.0

1. Check installed version

npm ls payload

2. UPGRADE to 3.90.0

npm install payload@">=3.90.0"

3. If no update is available yet, DOWNGRADE to a release before 3.0.0

npm view payload versions npm install payload@"<3.0.0"

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-105861?

payload: upgrade to 3.90.0. Exact commands for each OS are on this page.

Is CVE-2026-105861 being exploited?

CVE-2026-105861 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-105861 affect?

CVE-2026-105861 affects payload. Severity is high (CVSS 8.2). Payload is a free and open source headless content management system. In versions after 3.0.0 and before 3.90.0, authenticated external URL-based upload retrieval can forward authentication data to a redirected destination that was not veri

How urgent is CVE-2026-105861?

Priority 29/100. High severity

Related CVEs

CVE-2026-34751 CRITICAL 9.1 UPGRADE Payload is a free and open source headless content management system
CVE-2026-34747 HIGH 8.5 UPGRADE Payload is a free and open source headless content management system
CVE-2026-34748 HIGH 8.7 UPGRADE Payload is a free and open source headless content management system
CVE-2026-34746 HIGH 7.7 UPGRADE Payload is a free and open source headless content management system
CVE-2026-34749 MEDIUM 5.4 UPGRADE Payload is a free and open source headless content management system

References

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