CVE-2016-5430

Severity: medium (CVSS 5.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2016-09-03 · updated 2026-06-17
Weakness: CWE-200

Description

The RSA 1.5 algorithm implementation in the JOSE_JWE class in JWE.php in jose-php before 2.2.1 lacks the Random Filling protection mechanism, which makes it easier for remote attackers to obtain cleartext data via a Million Message Attack (MMA).

Affected products

Jose-Php Project Jose-Php: before 2.2.1 — fixed in 2.2.1

How to fix

Upgrade to a fixed version: Jose-Php Project Jose-Php 2.2.1. Check the vendor advisory for mitigations.

References

http://www.securityfocus.com/bid/92741
https://github.com/nov/jose-php/commit/f03b986b4439e20b0fd635109b48afe96cf0099b#diff-37b0d289d6375ba4a7740401950ccdd6R199
http://www.securityfocus.com/bid/92741
https://github.com/nov/jose-php/commit/f03b986b4439e20b0fd635109b48afe96cf0099b#diff-37b0d289d6375ba4a7740401950ccdd6R199

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