CVE-2023-33546

Name: CVE-2023-33546
Creator: NVD / NIST
Published: 2023-06-01T13:15:10.743+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.33%

Last modified Jun 17, 2026

CVE-2023-33546 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Janino 3.1.9 and earlier are subject to denial of service (DOS) attacks when using the expression evaluator.guess parameter name method. If the parser runs on user-supplied input, an attacker could supply content that causes the parser to crash due to a stack overflow. EPSS estimates a 0.33% chance of exploitation in the next 30 days.

Description

Janino 3.1.9 and earlier are subject to denial of service (DOS) attacks when using the expression evaluator.guess parameter name method. If the parser runs on user-supplied input, an attacker could supply content that causes the parser to crash due to a stack overflow. NOTE: this is disputed by multiple parties because Janino is not intended for use with untrusted input.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.33%

24.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Janino Project	Janino	<= 3.1.9

References

https://github.com/janino-compiler/janino/issues/201Exploit, Issue Tracking, Third Party Advisory
https://janino-compiler.github.io/janino/#security
https://github.com/janino-compiler/janino/issues/201Exploit, Issue Tracking, Third Party Advisory
https://janino-compiler.github.io/janino/#security

Timeline

Published: Jun 1, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-33546?

How severe is CVE-2023-33546?

CVE-2023-33546 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.33% probability of exploitation in the next 30 days.

How do I fix CVE-2023-33546?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-33546?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST