CVE-2026-4799 — MEDIUM (4.3)

Q: What is CVE-2026-4799?

CVE-2026-4799 is a vulnerability with a CVSS score of 4.3 (MEDIUM). In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.

Q: How severe is CVE-2026-4799?

CVE-2026-4799 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2026-4799?

Check the references section above for vendor advisories and patch information. Affected products include: Search-Guard Flx.

Vulnerability Description

In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

LOW

Integrity

NONE

Availability

NONE

Affected Products

Vendor	Product	Versions
Search-Guard	Flx	< 4.1.0

Related Weaknesses (CWE)

CWE-601

References

https://docs.search-guard.com/latest/changelog-searchguard-flx-4_1_0Release Notes
https://search-guard.com/cve-advisory/Vendor Advisory

FAQ

What is CVE-2026-4799?

CVE-2026-4799 is a vulnerability with a CVSS score of 4.3 (MEDIUM). In Search Guard FLX up to version 4.0.1, it is possible to use specially crafted requests to redirect the user to an untrusted URL.

How severe is CVE-2026-4799?

CVE-2026-4799 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-4799?

Check the references section above for vendor advisories and patch information. Affected products include: Search-Guard Flx.