CVE-2026-46683 Snappy: SSRF and local file read via the xsl-style-sheet option
Attackers can exploit the xsl-style-sheet option to perform Server-Side Request Forgery and read local files in Snappy.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-46683?
CVE-2026-46683 is a medium-severity server-side request forgery vulnerability in KnpLabs snappy, published on 10 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Snappy is a PHP library allowing thumbnail, snapshot or PDF generation from a url or a html page. Prior to version 1.7.0, there is a SSRF and local file read vulnerability via the xsl-style-sheet option. This issue has been patched in version 1.7.0.
Weakness: CWE-918
Which versions are affected by CVE-2026-46683?
2 open source packages ship an affected version, including knplabs/knp-snappy.
| Package | Affected | Fixed in |
|---|---|---|
knplabs/knp-snappy Packagist | All versions | 1.7.0 |
knplabs/knp-snappy Packagist | All versions | 1.7.0 |
How do I fix CVE-2026-46683?
Upgrade knplabs/knp-snappy to 1.7.0 or later.
Upgrade, and send outbound requests through an allow-list that blocks internal addresses. More about Server-side request forgery.
Is CVE-2026-46683 being exploited?
There is no known exploitation of CVE-2026-46683 in the wild and no public exploit code.
Sources
Also known as GHSA-c5fp-p67m-gq56.