CVE-2023-37260

league/oauth2-server key exposed in exception message when passing as string and providing invalid pass phrase

Description

league/oauth2-server is an implementation of an OAuth 2.0 authorization server written in PHP. Starting in version 8.3.2 and prior to version 8.5.3, servers that passed their keys to the CryptKey constructor as as string instead of a file path will have had that key included in a LogicException message if they did not provide a valid pass phrase for the key where required. This issue has been patched so that the provided key is no longer exposed in the exception message in the scenario outlined above. Users should upgrade to version 8.5.3 to receive the patch. As a workaround, pass the key as a file instead of a string.

Category

8.2
CVSS
Severity: High
CVSS 3.1 •
EPSS 1.21% Top 25%
Vendor Advisory github.com
Affected: thephpleague oauth2-server
Published at:
Updated at:

References

Link Tags
https://github.com/thephpleague/oauth2-server/security/advisories/GHSA-wj7q-gjg8-3cpm vendor advisory
https://github.com/thephpleague/oauth2-server/pull/1353 patch
https://github.com/thephpleague/oauth2-server/releases/tag/8.5.3 release notes

Frequently Asked Questions

What is the severity of CVE-2023-37260?
CVE-2023-37260 has been scored as a high severity vulnerability.
How to fix CVE-2023-37260?
To fix CVE-2023-37260, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-37260 being actively exploited in the wild?
It is possible that CVE-2023-37260 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-37260?
CVE-2023-37260 affects thephpleague oauth2-server.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.