CVE-2026-62864 Ring - Regular Expression Denial of Service

Ring < 1.15.5 contains a regular expression denial of service caused by backtracking regex in wrap-nested-params middleware, letting attackers cause denial of service via crafted parameter names, exploit requires crafted parameter names.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.34% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Regular Expression Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
30 October 2026
Updated
1 November 2026
Weakness
CWE-1333

Vendor fix

Upgrade to version 1.15.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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