CVE-2026-67346

HIGH 8.6

Swarms 6.8.1 Server-Side Request Forgery via DNS Rebinding Bypass

CVSS Score

8.6

EPSS Score

0.0%

EPSS Percentile

0th

Swarms through 6.8.1, fixed in commit 8b0fc9e, contains a server-side request forgery vulnerability in the _is_safe_url function that fails to validate hostnames through DNS resolution, allowing attackers to bypass the blocklist. Attackers can supply user-controlled image or audio URLs that resolve to private, loopback, or metadata addresses to reach internal services and exfiltrate credentials.

CWE	CWE-918
Vendor	kyegomez
Product	swarms
Published	Jul 30, 2026
Last Updated	Jul 30, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Changed

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

kyegomez / swarms

0 ≤ 6.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/kyegomez/swarms/issues/1714 github.com: https://github.com/kyegomez/swarms/pull/1734 github.com: https://github.com/kyegomez/swarms/commit/8b0fc9e4645603ad94d5fcf4da86e3b9c71f4743 vulncheck.com: https://www.vulncheck.com/advisories/swarms-server-side-request-forgery-via-dns-rebinding-bypass

Credits

George Chen