Secuno
ENNL
Book demo

CVE-2026-65838

Skipper vulnerability

8.2 HIGHEPSS 0.46%
  1. Published14 Sept 2026

Description

Skipper is an HTTP router and reverse proxy for service composition. Prior to 0.27.35, the opaAuthorizeRequestWithBody filter in filters/openpolicyagent/openpolicyagent.go can allow an oversized declared Content-Length request to bypass a deny-on-presence Rego policy because ExtractHttpBodyOptionally leaves OPA with an empty parsed_body while forwarding the complete request body upstream. This incomplete remediation of CVE-2026-50197 affects deployments that authorize request-body content and exceed -open-policy-agent-max-request-body-size, which defaults to 1 MB. Policy logic that does not reject input.attributes.request.http.truncated_body can therefore fail open and permit a forbidden payload to reach the protected service, while small bodies and the previously fixed chunked-body case are evaluated normally. This issue is fixed in version 0.27.35.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

Remediation

No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.

References

Related CVEs

Recent high-severity vulnerabilities sharing a weakness type.

CVE-2026-1063468.8
Improper state validation in DevTools in Google Chrome prior to 155.0.8059.39 allowed a…
CVE-2026-1002968.1
In Anjvision YSSD-RTMP-H5 firmware version 3.3.2.4, an empty-body POST to…
CVE-2026-917338.3
Improper state validation in Skia in Google Chrome prior to 153.0.8010.47 allowed a…
CVE-2026-790738.8
Improper state validation in Parser in Google Chrome prior to 152.0.7977.65 allowed a…
CVE-2026-790728.1
Improper state validation in Performance in Google Chrome prior to 152.0.7977.65…
CVE-2026-755959.1
Netty is an asynchronous, event-driven network application framework. Prior to…

Frequently asked

Is CVE-2026-65838 being actively exploited?

CVE-2026-65838 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.46%.

How severe is CVE-2026-65838?

CVE-2026-65838 has a CVSS 3.1 base score of 8.2, rated high. EPSS estimates a 0.46% probability of exploitation.

How do I fix CVE-2026-65838?

Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-65838 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Get Patch this first every Monday

Five vulnerabilities that matter this week, ranked on real exploitation. Plain language, one email, no spam.

You can unsubscribe with one click from every issue. We handle your details as described in our privacy policy.

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.