CVE-2026-65838 Skipper - Authorization Bypass

Skipper < 0.27.35 contains an authorization bypass caused by incomplete request body parsing in opaAuthorizeRequestWithBody filter, letting attackers bypass deny-on-presence Rego policies with oversized Content-Length requests, exploit requires policy logic that does not reject truncated bodies.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
EPSS
0.46% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N
Published
14 September 2026
Updated
15 October 2026
Weakness
CWE-754

Vendor fix

Upgrade to version 0.27.35 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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