CVE-2026-44166

Description

Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the OAuth2 app providers, e.g. "A". When the victim gets invited or decides to sign up to your app on their own with provider "B" (PocketBase OAuth2 auth requires to be with a different provider because we don't allow multiple OAuth2 accounts from the same provider to be associated to a single PocketBase user), the user created previously by the attacker will be autolinked, upgraded to "verified" and its old password reset. This vulnerability is fixed in 0.22.42 and 0.37.4.

Overview

State: PUBLISHED
Assigner (CNA): GitHub_M
CVSS severity: MEDIUM
CVSS score: 6.1 / 10
CVSS vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Effective score: 6.1 / 10 MEDIUM source: CNA overview
CWE(s): CWE-287
Reserved: 2026-05-05
Published: 2026-05-12 19:16 UTC
Last updated: 2026-05-12 20:50 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/44xxx/CVE-2026-44166.json
Linked Threat: CVE-2026-44166 — CVE-2026-44166

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2026-05-12 18:17:29 UTC
NVD last modified: 2026-05-19 16:20:40 UTC
NVD CVSS v3.1: 7.6 / 10 HIGH source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:H/A:L
Exploitability subscore: 2.8 / 10
Impact subscore: 4.7 / 10
EPSS score: 0.0003 (probability of exploitation in next 30 days)
EPSS percentile: 10.60% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-29723
Assigner: GitHub_M
Published: May 12, 2026, 5:16:59 PM
Updated: May 12, 2026, 6:50:17 PM
EUVD base score (CVSS 4.0): 6.1 / 10
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
EUVD-reported EPSS: 0.0400
Vendors: pocketbase
Products: pocketbase (< 0.22.42)

pocketbase (0.30.0, < 0.37.4)
Aliases: GHSA-pq7p-mc74-g65w

ENISA description: Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the OAuth2 app providers, e.g. "A". When the victim gets invited or decides to sign up to your app on their own with provider "B" (PocketBase OAuth2 auth requires to be with a different provider because we don't allow multiple OAuth2 accounts from the same provider to be associated to a single PocketBase user), the user created previously by the attacker will be autolinked, upgraded to "verified" and its old password reset. This vulnerability is fixed in 0.22.42 and 0.37.4.

EUVD references (1)

https://github.com/pocketbase/pocketbase/security/advisories/GHSA-pq7p-mc74-g65w

Affected products (1)

Vendor	Product	Versions	Platforms
pocketbase	pocketbase	`< 0.22.42` (affected), `>= 0.30.0, < 0.37.4` (affected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:pocketbase:pocketbase:*:*:*:*:*:go:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://github.com/pocketbase/pocketbase/security/advisories/GHSA-pq7p-mc74-g65w x_refsource_CONFIRM

MITRE references (1) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://github.com/pocketbase/pocketbase/security/advisories/GHSA-pq7p-mc74-g65w x_refsource_CONFIRM

Web references (3)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://nvd.nist.gov/vuln/detail/CVE-2026-44166 tenable:nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2026-44166 tenable:www.cve.org
https://www.first.org/epss/ tenable:www.first.org

NVD-tagged references (1)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://github.com/pocketbase/pocketbase/security/advisories/GHSA-pq7p-mc74-g65w security-advisories@github.com Vendor Advisory

Remediations (15)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft and Adobe Patch Tuesday, April 2026 Security Update Review

web:blog.qualys.com

With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.

2026-05-23 20:57 UTC
Microsoft Patch Tuesday April 2026 - 168 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft has released its April 2026 Patch Tuesday security update, addressing 168 vulnerabilities across its product portfolio including one actively exploited zero-day and one publicly disclosed flaw that organizations must prioritize immediately.

2026-05-23 20:57 UTC
Patch Tuesday, April 2026 Edition - Krebs on Security

web:krebsonsecurity.com

For a clickable, per- patch breakdown, check out the SANS Internet Storm Center Patch Tuesday roundup. Running into problems applying any of these updates?

2026-05-23 20:57 UTC
Nvd - Cve-2026-44446

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-23 20:57 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-23 20:57 UTC
Critical Patches Issued for Microsoft Products, April 14, 2026

web:www.cisecurity.org

<p>Multiple vulnerabilities have been discovered in Microsoft products, the most severe of which could allow for remote code execution. Successful exploitation of the most severe of these vulnerabilities could result in an attacker gaining the same privileges as the logged-on user. Depending on the privileges associated with the user, an attacker could then install programs; view, change, or ...

2026-05-23 20:57 UTC
April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike

web:www.crowdstrike.com

Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

2026-05-23 20:57 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-23 20:57 UTC
CVE 2026 — The Vulnerabilities That Matter Most Right Now

web:www.penligent.ai

Second, chipset and OEM dependencies make remediation slower and messier than software-only patching. Google's bulletin explains the two Android patch levels for March 2026 and clarifies that devices with security patch levels of 2026 -03-01 or 2026 -03-05 are protected against the associated issues, depending on applicable components.

2026-05-23 20:57 UTC
Windows 11 April 2026 Update tested: What's new, improved and fixed

web:www.windowslatest.com

Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

2026-05-23 20:57 UTC
THREAT ADVISORY RedSun Zero-Day (Windows Defender) April 17, 2026

web:blackswan-cybersecurity.com

Cloud Files API activity originating outside legitimate OneDrive/sync processes. Mitigation Steps: Apply all Windows updates immediately (monitor MSRC for an emergency RedSun-specific patch . None released as of April 17, 2026 ). Supplement Defender with a secondary EDR solution (e.g., Huntress) capable of detecting Defender bypasses.

2026-05-26 02:50 UTC
Microsoft April 2026 Patch Tuesday Fixes 168 Flaws, Includes Actively ...

web:cyberpress.org

Microsoft has released its April 2026 Patch Tuesday updates, fixing 168 vulnerabilities across Windows, cloud, and application products, including one actively exploited zero-day in Microsoft SharePoint Server.

2026-05-26 02:50 UTC
Nvd - Cve-2026-44277

web:nvd.nist.gov

Official websites use .gov A .gov website belongs to an official government organization in the United States.

2026-05-26 02:50 UTC
Portal for ArcGIS Security 2026 Update 1 Patch - Esri Support

web:support.esri.com

The C version of this patch also includes additional bug fixes not related to security, refer to the updated Issues Addressed with this Patch section for the latest details. Important Note - April 20, 2026 : The 11.4 version of the Portal for ArcGIS Security 2026 Update 1 Patch is now available.

2026-05-26 02:50 UTC
Fix RDP Connection Error 'CredSSP Encryption Oracle Remediation'

web:woshub.com

The Encryption Oracle Remediation policy provides 3 levels of mitigation for the CredSSP vulnerability: Force Updated Clients - the most secure mode, which blocks vulnerable computer connections. If this option is enabled on the RDP host, it will block RDP connections from client computers with a vulnerable version of CredSSP.

2026-05-26 02:50 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-44166.json.

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