GHSA-6wjw-qf87-fv5v: illuminate/encryption

Package	Ecosystem	Affected	Fixed in
illuminate/encryption	Packagist	>=5.5.0, <5.5.40 \|\| >=5.6.0, <5.6.15	5.5.40, 5.6.15

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Laravel's illuminate/encryption package, versions 5.5.0 before 5.5.40 and 5.6.0 before 5.6.15, can fail on decryption and return false unexpectedly. An attacker who can modify the encrypted payload before it is decrypted could cause unexpected application behavior, particularly where weak type comparisons are used on the result. Upgrade to version 5.5.40 or 5.6.15.

Written 4 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

No source has published a CVSS score for this record yet.

CISA KEV Not listed.
EPSS No score.

Timeline

31 Oct 2026, 14:29 UTC First seen by agentprime
31 Oct 2026, 14:29 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.