Security Digest · Vulnerability record

CVE-2026-34751: Payload: Pre-Authentication Account Takeover via Parameter Injection in Password Recovery

Payload is a free and open source headless content management system.

CVSS 9.1 Critical EPSS 0.4% · p37

Should you act?

Critical and remotely reachable

No known exploitation yet, but it is network-reachable without credentials. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.

  • No confirmed exploitation. It is not in CISA’s KEV catalog and CISA’s SSVC assessment records no known exploitation. That can change quickly after a public write-up; re-check if you are affected.
  • EPSS 0.4%, percentile 37: FIRST’s model estimates a 0.4% chance of exploitation activity in the next 30 days, higher than 37% of all scored CVEs (low). EPSS is a probability, not a verdict.
  • Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.
  • Only applies if your dependency tree includes payload (npm) < 3.79.1, fixed in 3.79.1; @payloadcms/graphql (npm) < 3.79.1, fixed in 3.79.1. Check your lockfile, including transitive dependencies.

What it is

Payload is a free and open source headless content management system. Prior to version 3.79.1 in @payloadcms/graphql and payload, a vulnerability in the password recovery flow could allow an unauthenticated attacker to perform actions on behalf of a user who initiates a password reset. This issue has been patched in version 3.79.1 for @payloadcms/graphql and payload.

From the GitHub advisory

Impact

A vulnerability in the password recovery flow could allow an unauthenticated attacker to perform actions on behalf of a user who initiates a password reset.

Users are affected if:

- They are using Payload version

Patches

Weakness type: CWE-472, CWE-640.

Product: payload (npm) · Assigned by: GitHub_M · Published: 2026-04-01

Affected and fixed versions

EcosystemPackageVulnerableFirst fixed
npmpayload< 3.79.13.79.1
npm@payloadcms/graphql< 3.79.13.79.1
VendorProductAffected versions (per CVE record)
payloadcmspayload< 3.79.1

Severity scores

Scored byCVSSScoreVector
GitHub_M3.19.1 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
GitHub3.19.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
  • Attack vector: network (remotely reachable)
  • Attack complexity: low
  • Privileges required: none (no login)
  • User interaction: none
  • Scope: unchanged

CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.

Exploitation and urgency

  • CISA KEV: not listed (no confirmed in-the-wild exploitation known to CISA).
  • CISA SSVC assessment: exploitation none, automatable yes, technical impact total.
  • FIRST EPSS (model of 2026-10-21): 0.43% probability of exploitation activity in the next 30 days; percentile 37.

Timeline

  • — CVE record published by GitHub_M
  • — GitHub-reviewed advisory GHSA-hp5w-3hxx-vmwf published (critical)
  • — CVE record last updated

Sources and references

Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.

Vulnerability records

  1. GitHub Advisory GHSA-hp5w-3hxx-vmwf github.com
  2. CVE.org record CVE-2026-34751 cve.org
  3. NVD entry CVE-2026-34751 nvd.nist.gov

Other references from the CVE record and advisory

  1. github.com github.com
  2. github.com github.com

Critical npm advisories · Today’s Security Digest