PHP package security

Is laminas/laminas-diactoros vulnerable?

Q: Does laminas/laminas-diactoros have known vulnerabilities?

Yes. Packagist lists 2 security advisories for laminas/laminas-diactoros (1 high, 1 medium severity). The most recent, reported 2023-04-24, is "HTTP Multiline Header Termination". The newest release, 3.9.0, is outside every affected range.

Q: Which version of laminas/laminas-diactoros should I run?

The newest stable release is 3.9.0 (published 2026-10-08). The most recent advisory is fixed in 2.18.1, 2.24.2 and 2.25.2, so stay on or above the fixed version for your major version. Run composer update laminas/laminas-diactoros, then composer audit to confirm nothing else is flagged.

Q: How do I check if my laminas/laminas-diactoros version is affected?

Run composer show laminas/laminas-diactoros in your project to see the installed version, then enter it in the version check on this page. You can also run composer audit, which reads the same Packagist advisory data for every package in your composer.lock.

2 known security advisories for laminas/laminas-diactoros. The latest was reported on 2023-04-24 and is fixed in 2.18.1, 2.24.2 and 2.25.2. The newest release, 3.9.0, is not affected by any of them.

1 high 1 medium

Known advisories: 2
Newest release: 3.9.0
Released: 2026-10-08
Affecting newest release: 0
Last synced: 2026-11-03

PSR HTTP Message implementations · packagist.org/packages/laminas/laminas-diactoros

Check your version

Run composer show laminas/laminas-diactoros in your project to see the installed version, then enter it here.

Security advisories for laminas/laminas-diactoros

Newest first. “Affected” is the Composer version constraint from the advisory; “fixed in” is each version the advisory names as the first safe one on its release line.

Reported	Advisory	Severity	Affected	Fixed in
2023-04-24	HTTP Multiline Header Termination GHSA-xv3h-4844-9h36 · CVE-2023-29530 · GitHub	high	>=2.25.0,<2.25.2 \| >=2.24.0,<2.24.2 \| =2.23.0 \| =2.22.0 \| =2.21.0 \| =2.20.0 \| =2.19.0 \| <2.18.1	2.18.1, 2.24.2, 2.25.2
2022-07-25	Diactoros before 2.11.1 vulnerable to HTTP Host Header Attack. CVE-2022-31109 · GitHub, FriendsOfPHP/security-advisories	medium	<2.11.1	2.11.1

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Questions about laminas/laminas-diactoros

Does laminas/laminas-diactoros have known vulnerabilities?

Yes. Packagist lists 2 security advisories for laminas/laminas-diactoros (1 high, 1 medium severity). The most recent, reported 2023-04-24, is "HTTP Multiline Header Termination". The newest release, 3.9.0, is outside every affected range.

Which version of laminas/laminas-diactoros should I run?

The newest stable release is 3.9.0 (published 2026-10-08). The most recent advisory is fixed in 2.18.1, 2.24.2 and 2.25.2, so stay on or above the fixed version for your major version. Run composer update laminas/laminas-diactoros, then composer audit to confirm nothing else is flagged.

How do I check if my laminas/laminas-diactoros version is affected?

Run composer show laminas/laminas-diactoros in your project to see the installed version, then enter it in the version check on this page. You can also run composer audit, which reads the same Packagist advisory data for every package in your composer.lock.

Where this data comes from

Advisories come from the Packagist security advisories API, which collects the GitHub Advisory Database and the FriendsOfPHP security advisories. composer audit reads the same data. Releases come from packagist.org. Last synced 2026-11-03; we re-check daily. Each advisory links to its source. Spot an error? Tell us.

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