Attacker can cause Kyverno user to unintentionally consume insecure image

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS

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

EPSS

• CVE-2023-47630: 0.26% estimated exploitation activity in the next 30 days; percentile 18.00 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

An issue was found in Kyverno that allowed an attacker to control the digest of images used by Kyverno users. The issue would require the attacker to compromise the registry that the Kyverno fetch their images from. The attacker could then return a vulnerable image to the the user and leverage that to further escalate their position. As such, the attacker would need to know which images the Kyverno user consumes and know of one of multiple exploitable vulnerabilities in previous digests of the images. Alternatively, if the attacker has compromised the registry, they could craft a malicious image with a different digest with intentionally placed vulnerabilities and deliver the image to the user. An attacker was not be able to control other parameters of the image than the digest by exploiting this vulnerability. Users pulling their images from trusted registries are not impacted by this vulnerability. There is no evidence of this being exploited in the wild. The issue has been patched…

Published by the source

14 Nov 2023, 22:20 UTC

Last modified by the source

14 Nov 2023, 22:20 UTC

Source last checked

26 Oct 2026, 15:00 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-3hfq-cx9j-923w

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# Patch Next advisory brief: CVE-2023-47630

Advisory: Attacker can cause Kyverno user to unintentionally consume insecure image
IDs: CVE-2023-47630, GHSA-3hfq-cx9j-923w
Record: https://patchnext.com/advisories/cve-2023-47630 (revision 1, source checked 26 Oct 2026, 15:00 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: High (CVSS 7.1)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/kyverno/kyverno 1.10.5. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/kyverno/kyverno: affected < 1.10.5; fixed in 1.10.5

## Suggested inspection (read-only)
- Go github.com/kyverno/kyverno: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/kyverno/kyverno.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-3hfq-cx9j-923w (GitHub-reviewed advisory GHSA-3hfq-cx9j-923w lists affected ranges: Go github.com/kyverno/kyverno >=0 <1.10.5)

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