CVE-2026-44166: Pocketbase is an open source web backend written in go

Routine

HIGH 7.6UPGRADE

CVE-2026-44166 is a high-severity flaw (CVSS 7.6) affecting pocketbase. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 b

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.6 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	0.2% (top 84%)
CISA exploited list	No
Weakness	CWE-287
Published	2026-05-12
Last modified	2026-06-17

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

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-12 18:17 UTCPublished CVE record published
2026-06-17 10:50 UTCUpdated Record last modified

pocketbase pocketbase UPGRADE

Affected: < 0.22.42 · >= 0.23.0 and < 0.37.4

Fixed in: 0.22.42, 0.37.4

Safe to downgrade to: a release before 0.23.0

1. Check installed version

apt-cache policy pocketbase || rpm -q pocketbase || pocketbase --version

2. UPGRADE to 0.22.42 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade pocketbase

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade pocketbase

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 0.23.0 (Debian / Ubuntu)

apt-cache madison pocketbase sudo apt install pocketbase=<VERSION_BEFORE_0.23.0> sudo apt-mark hold pocketbase

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list pocketbase sudo dnf downgrade pocketbase-<VERSION_BEFORE_0.23.0> sudo dnf versionlock add pocketbase

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-2026-44166?

pocketbase: upgrade to 0.22.42, 0.37.4. Exact commands for each OS are on this page.

Is CVE-2026-44166 being exploited?

CVE-2026-44166 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-2026-44166 affect?

CVE-2026-44166 affects pocketbase. Severity is high (CVSS 7.6). 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 authenticatin

How urgent is CVE-2026-44166?

Priority 31/100. High severity

References

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