Skip to content
EXYS
Back to the CVEs

CVE-2026-109321

9.1, critical

Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic…

NVD (opens in a new tab) CVE.org (opens in a new tab)
CVSS
9.1, critical critical CVSS v3.1
EPSS, next 30 days
0.4% higher than 32.8% of scored CVEs
Exploitation
No public evidence
Published
12 Oct 20265 days ago

Description

Grav Login OAuth plugin (grav-plugin-login-oauth) before 1.4.3 provisions OAuth accounts as ordinary Grav users with a deterministic <provider>.<id> username and an unsalted MD5 hash of the provider identifier as the password, without disabling password login. Unauthenticated remote attackers who learn or guess a provider identifier can reproduce these credentials and log in, gaining administrative control of privileged accounts.

Details

Vendor
Getgrav
Product
grav-plugin-login-oauth
Weakness
CWE-1391 (opens in a new tab)
Status
Deferred
Updated
15 Oct 2026
Assigner
disclosure@vulncheck.com

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

References 2

Advisories 1

Other references 1

The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.

Other Getgrav CVEs

Every Getgrav CVE we hold

Same vendor in what we hold, not a known link between the flaws.

  • CVE-2026-109312 Getgrav grav-plugin-login Improper Authentication Vulnerability EPSS 0.4% 8.1, high
  • CVE-2026-109313 Getgrav grav-plugin-login Improper Authentication Vulnerability EPSS 0.4% 8.1, high
  • CVE-2026-109314 Getgrav grav-plugin-login Exposure of Sensitive Information Vulnerability EPSS 0.3% 7.3, high
  • CVE-2026-109317 Getgrav grav-plugin-api Improper Privilege Management Vulnerability EPSS 0.4% 7.2, high
  • CVE-2026-109325 Getgrav grav Exposure of Sensitive Information Vulnerability EPSS 0.4% 7.5, high
  • CVE-2026-109326 Grav before 2.1.7 contains an information disclosure vulnerability because bundled nginx, lighttpd, IIS, and Caddy 2 configurations… EPSS 0.3% 7.5, high

Beyond this page

Is CVE-2026-109321 in your network?

This page tells you how dangerous CVE-2026-109321 is out there. Whether it sits on one of your devices, only a scan of your own network can tell. That is what our systems do, every day, for the companies we protect.

  • EXYS7600 OCELOT

    Find it before attackers do

    Ocelot scans your network on a schedule and reports every vulnerability it finds by its CVE identifier, with its CVSS score and how many of your hosts are affected. A finding like CVE-2026-109321 comes with the devices to patch.

    Learn more about EXYS7600 OCELOT

  • EXYS7950 KONDRA

    Detect it if it's exploited

    Until the patch is applied, Kondra monitors your network, events and endpoints in real time. It keeps an inventory of the software installed on every endpoint, and its anomaly detection rules flag what an attacker does once inside.

    Learn more about EXYS7950 KONDRA
Check your exposure

Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 17 Oct 2026, not the live upstream state.