CVE-2026-34443 (GCVE-0-2026-34443)
Vulnerability from cvelistv5 – Published: 2026-03-31 21:28 – Updated: 2026-04-01 18:54
VLAI
EPSS
VEX
Title
FreeScout: SSRF protection bypass via broken CIDR check in checkIpByMask()
Summary
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.211, checkIpByMask() in app/Misc/Helper.php checks whether the input IP contains a / character. Plain IP addresses never contain /, so the function always returns false without checking any CIDR ranges. The entire 10.0.0.0/8 and 172.16.0.0/12 private ranges are unprotected. This issue has been patched in version 1.8.211.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-01 18:54 UTC
CWE
- CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/freescout-help-desk/freescout/… | x_refsource_CONFIRM |
| https://github.com/freescout-help-desk/freescout/… | x_refsource_MISC |
| https://github.com/freescout-help-desk/freescout/… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| freescout-help-desk | freescout |
Affected:
< 1.8.211
|
guessed |
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}
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"id": "CVE-2026-34443",
"lastModified": "2026-07-24T21:10:00.143",
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"confidentialityImpact": "LOW",
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"privilegesRequired": "NONE",
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
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