Secuno
ENNL
Book demo

CVE-2026-32246

Tinyauth authentication bypass

8.5 HIGHPublic exploitEPSS 0.39%
  1. Published12 Mar 2026

Description

Tinyauth is an authentication and authorization server. Prior to 5.0.3, the OIDC authorization endpoint allows users with a TOTP-pending session (password verified, TOTP not yet completed) to obtain authorization codes. An attacker who knows a user's password but not their TOTP secret can obtain valid OIDC tokens, completely bypassing the second factor. This vulnerability is fixed in 5.0.3.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityLow
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:N

Affected products

Tinyauth≤ 5.0.2

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-843138.8
Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, POST…
CVE-2026-1093728.7
ZITADEL 4.x before 4.19.2 and 3.x through 3.4.15 contains an authentication bypass in…
CVE-2026-1093138.1
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass vulnerability…
CVE-2026-1093128.1
Grav Login plugin 2.7.0 before 3.9.9 contains an authentication bypass in…
CVE-2026-10890710.0
A vulnerability was determined in Netcore NR268 1.7.121109. Affected is the function…
CVE-2026-1088658.2
AmoyLab Unla through 0.10.0 contains an authentication bypass vulnerability that allows…

Frequently asked

Is CVE-2026-32246 being actively exploited?

CVE-2026-32246 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.39%.

How severe is CVE-2026-32246?

CVE-2026-32246 has a CVSS 3.1 base score of 8.5, rated high. EPSS estimates a 0.39% probability of exploitation.

Which products are affected by CVE-2026-32246?

Affected products include Tinyauth.

How do I fix CVE-2026-32246?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-32246 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.