CVE-2026-50157 (CVSS 6.5)

Description

Auth0 Symfony is a Symfony SDK for Auth0 Authentication and Management APIs. From 5.0.0-BETA0 until 5.9.0, the Authorizer::authenticate() and Authorizer::supports() paths in the Authorizer security authenticator may accept OAuth 2.0 bearer access tokens from the token URL query parameter as well as the Authorization header for protected HTTP routes. Query-string tokens can be recorded in server logs, browser history, or referrer data and then replayed against protected API endpoints. This issue is fixed in version 5.9.0.

Is your site exposed to CVE-2026-50157?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

6.5

MEDIUM

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

EPSS — Exploit Prediction

0.0050

Probability of exploitation

0.41%

Percentile rank

EPSS estimates the probability that this vulnerability will be exploited in the wild within the next 30 days. A higher score means more likely to be exploited.

Weakness Type (CWE)

CWE-598 CWE-598

References

Other References

https://github.com/auth0/symfony/commit/bd1851b14ae15e99cbe87c96496cf25da025288a https://github.com/auth0/symfony/releases/tag/5.9.0 https://github.com/auth0/symfony/security/advisories/GHSA-ffq7-hh2j-r24p

Frequently Asked Questions

What is CVE-2026-50157? +

Auth0 Symfony is a Symfony SDK for Auth0 Authentication and Management APIs. From 5.0.0-BETA0 until 5.9.0, the Authorizer::authenticate() and Authorizer::supports() paths in the Authorizer security authenticator may accept OAuth 2.0 bearer access tokens from the token URL query parameter as well as the Authorization header for protected HTTP routes. Query-string tokens can be recorded in server logs, browser history, or referrer data and then replayed against protected API endpoints. This issue is fixed in version 5.9.0. It has a CVSS v3.1 base score of 6.5 (MEDIUM).

How severe is CVE-2026-50157? +

CVE-2026-50157 has a CVSS v3.1 score of 6.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance. The EPSS score is 0.0050, placing it in the 0th percentile for exploitation probability.

How do I check if I'm vulnerable to CVE-2026-50157? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-8997

An Information Exposure vulnerability has been identified in OpenText Enterprise Security Manager. The vulnerability could be remotely exploited.

CVE-2026-9592

SEPPmail Secure Email Gateway & SEPPmail Cloud before version 15.0.4.2 allows an attacker to replay & hijack a user session …

CVE-2026-76179 9.8

An improper protection of authentication tokens vulnerability exists in certain Ebyte gateway products. Authentication tokens used by the web management …

CVE-2025-57800 8.8

Audiobookshelf is an open-source self-hosted audiobook server. In versions 2.6.0 through 2.26.3, the application does not properly restrict redirect callback …

CVE-2025-50110 8.8

An issue was discovered in the method push.lite.avtech.com.AvtechLib.GetHttpsResponse in AVTECH EagleEyes Lite 2.0.0, the GetHttpsResponse method transmits sensitive information - …

CVE-2024-31206 8.2

dectalk-tts is a Node package to interact with the aeiou Dectalk web API. In `[email protected]`, network requests to the third-party …

CVE-2026-50157