CVE-2024-34515 image-optimizer allows PHAR deserialization

High 8.8 Published Updated

Attackers can achieve code execution via PHAR deserialization in the image-optimizer library by exploiting the phar:// protocol in file existence checks.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Over the internet
Victim action needed
Not needed
Fix
Available

What is CVE-2024-34515?

CVE-2024-34515 is a high-severity unsafe deserialization vulnerability in n/a, published on 5 May 2024. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

image-optimizer before 1.7.3 allows PHAR deserialization, e.g., the phar:// protocol in arguments to file_exists().

Weakness: CWE-502

Which versions are affected by CVE-2024-34515?

2 open source packages ship an affected version, including spatie/image-optimizer.

PackageAffectedFixed in
spatie/image-optimizer PackagistAll versions1.7.3
spatie/image-optimizer PackagistAll versions1.7.3

How do I fix CVE-2024-34515?

Upgrade spatie/image-optimizer to 1.7.3 or later.

Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.

Is CVE-2024-34515 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-34515 exists.

Sources

Also known as CLSA-2026-1793215035, GHSA-6pjm-hmvf-h4rr.

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