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No exploitation reportedFix available

CVE-2023-1260

No exploitation reported by the sources we read.

  • Published2023-09-24
  • WeaknessCWE-288

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

An authentication bypass vulnerability was discovered in kube-apiserver. This issue could allow a remote, authenticated attacker who has been given permissions "update, patch" the "pods/ephemeralcontainers" subresource beyond what the default is. They would then need to create a new pod or patch one that they already have access to. This might allow evasion of SCC admission restrictions, thereby gaining control of a privileged pod.

Timeline

dates in UTC
  1. 2023-09-2401:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC
Indicators tagged with this CVE, per day0 indicators over 7 days
Block these indicators
  • Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-1260?format=txt
  • CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-1260?format=csv
  • TAXII collection of exploited CVEs
  • The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV
Redhat openshift container platform
BranchAffectedFixed in
4.10= 4.10no fix published
4.11= 4.11no fix published
4.12= 4.12no fix published
4.13= 4.13no fix published
Kubernetes kube-apiserver
BranchAffectedFixed in
—all versionsno fix published
openshift/apiserver-library-go
BranchAffectedFixed in
0.0< 0.0.0-202306210.0.0-20230621

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Distribution builds and vendor advisories

Packages from OSV.dev and products from the vendors' CSAF advisories.

version not verifiedVersions not verified: read as OSV.dev and the vendors publish them, not checked against each vendor's release list.

Vendor advisories

  • RHSA-2023:4093 Red Hat Product Security10 products fixed

    Red Hat Security Advisory: OpenShift Container Platform 4.13.5 security update

Full record on NVD

Fix

  1. Vendor fix Red Hat Product Security RHSA-2023:4093 · 10 productsFor OpenShift Container Platform 4.13 see the following documentation, which will be updated shortly for this release, for important instructions on how to upgrade your cluster and fully apply this asynchronous errata update: https://docs.openshift.com/container-platform/4.13/release_notes/ocp-4-1…
  2. Workaround from the vendor Red Hat Product Security RHSA-2023:4093 · 367 productsMitigation for this issue is either not available or the currently available options don't meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Proof-of-concept repositories
none listed
PoC-in-GitHub

Sources

  • CNACVSS 3.18read 2026-10-23
  • NVDCVSS 3.18read 2026-10-23
  • CNAweakness (CWE)CWE-288read 2026-10-23
  • FIRST EPSSEPSS score1.6 %2026-10-23
  • OSVaffected packages—

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H
Published
2023-09-24
Last Modified
2026-06-17
NVD status
Modified

Frequently asked questions

What is CVE-2023-1260?

An authentication bypass vulnerability was discovered in kube-apiserver. This issue could allow a remote, authenticated attacker who has been given permissions "update, patch" the "pods/ephemeralcontainers" subresource beyond what the default is. They would then need to create a new pod or patch one that they already have access to. This might allow evasion of SCC admission restrictions, thereby gaining control of a privileged pod.

Is CVE-2023-1260 actively exploited?

Active exploitation of CVE-2023-1260 has not been confirmed. Its EPSS score was 1.6% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-1260?

CVE-2023-1260 has a CVSS v3 base score of 8 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H.

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