Snappy: SSRF and local file read via the xsl-style-sheet option
Priority LOW 36CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Low · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-918 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00249 16th percentileScored 2026-11-07
Fix Fixed snappy (KnpLabs): 1.7.0knplabs/knp-snappy (Packagist): 1.7.0
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| KnpLabs | snappy | before 1.7.0 | 1.7.0 | Patch available | CNA |
| — | knplabs/knp-snappy (Packagist) | before 1.7.0 | 1.7.0 | Patch available | GHSA-c5fp-p67m-gq56 |
- snappy VendorKnpLabs Affected before 1.7.0 Fixed in 1.7.0 Patch available CNA
- knplabs/knp-snappy (Packagist) Vendor— Affected before 1.7.0 Fixed in 1.7.0 Patch available GHSA-c5fp-p67m-gq56
Remediation
- Fix · CNA snappy (KnpLabs) Fixed in 1.7.0
- Fix · GHSA-c5fp-p67m-gq56 knplabs/knp-snappy (Packagist) Fixed in 1.7.0 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-46683
- 2026-10-03 Alias added: GHSA-c5fp-p67m-gq56
References
More KnpLabs vulnerabilities
- TI-2023-21930 Unsafe deserialization in knplabs/knp-snappy CVSS 3.1CRITICAL 9.8
- TI-2026-34294 Snappy: Binary path is never shell-escaped due to an inverted is_executable check CVSS 4.0HIGH 7.5
- TI-2023-12694 Snappy vulnerable to PHAR deserialization, allowing remote code execution CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-46683 · CVE Program
- CVE-2026-46683 · NVD
- FIRST EPSS
- GHSA-c5fp-p67m-gq56 · GitHub Advisory Database · CC BY 4.0
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