Security readout for executives and security teams
Plain-English summary
A missing authentication check in OpenChoreo’s internal cluster gateway lets any caller who can reach it access connected Kubernetes environments. An attacker could steal tenant secrets, alter applications, or run commands, potentially compromising confidentiality, integrity, and availability across multiple data planes.
Executive priority
Treat this as an urgent remediation for affected deployments. The vulnerability can expose credentials and permit broad control of connected Kubernetes workloads, creating material operational and data risk. Prioritize externally reachable, shared-network, and multi-tenant environments first, while recognizing that the supplied evidence does not establish active exploitation.
Technical view
Before the fixed releases, the cluster gateway exposed proxy, execution, and wire-log interfaces without client-certificate or token authentication. These interfaces were not read-only, enabling Secret access, workload mutation, and command execution across connected data planes. Affected versions are below 1.0.3, 1.1.0–1.1.2, and 1.2.0-rc.1.
Likely exposure
Exposure requires network reachability to the internal cluster-gateway listener. Risk is highest where untrusted workloads, compromised internal hosts, shared tenant networks, or configuration errors can reach that listener. Internet exposure is not established by the supplied evidence, but internal-only placement does not prevent exploitation by a network-reachable caller.
Exploitation context
The CVSS 3.1 score is 9.0, reflecting low attack complexity and severe cross-scope impact. The supplied record is not in KEV and provides no evidence of active exploitation. Public advisory and code-change details may nevertheless help defenders—and potential attackers—identify vulnerable deployments.
Researcher notes
The core weaknesses are missing authentication and authorization on powerful internal interfaces, mapped to CWE-306, CWE-862, and CWE-269. Validation should remain non-destructive: establish version, reachability, authentication enforcement, and audit evidence. The supplied bundle identifies fixes but does not describe observed attacks or confirm whether every deployment topology exposes the listener.
Mitigation direction
- Upgrade to OpenChoreo 1.0.3, 1.1.3, 1.2.0-rc.2, or a later supported release.
- Restrict cluster-gateway listener access to explicitly authorized components until upgrading.
- Review vendor guidance for branch-specific upgrade and deployment requirements.
- If compromise is suspected, rotate exposed Kubernetes Secrets and investigate affected workloads.
Validation and detection
- Inventory OpenChoreo versions and compare them with the documented affected ranges.
- Confirm the cluster-gateway listener is unreachable from untrusted workloads and network segments.
- Verify upgraded gateways require the intended client authentication on internal interfaces.
- Review available cluster-gateway and Kubernetes audit records for unexpected Secret access, mutations, or command execution.
- Recheck connected data planes for unauthorized workload or configuration changes.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-306: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCredential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupContainer behavior lookup
The affected technology mentions containers, so container-specific ATT&CK technique review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2026-73842 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H2.36GitHub_MVulnerability scoring details
Base CVSS 3.1 score
9CriticalVector: CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/openchoreo/openchoreo/security/advisories/GHSA-rh53-xvx2-j327CVE reference, GitHub_M · x_refsource_CONFIRM
- https://github.com/openchoreo/openchoreo/pull/4256CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/pull/4258CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/pull/4259CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/commit/50fcae3f1753fd0ac3ae655a3fc080a761c49c04CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/commit/93e6f10953cfc249af2222ddb6730d4b0a729129CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/commit/e3da3c63dcf0895c693cb17ce142ef95e959b62aCVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/releases/tag/v1.0.3CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/releases/tag/v1.1.3CVE reference, GitHub_M · x_refsource_MISC
- https://github.com/openchoreo/openchoreo/releases/tag/v1.2.0-rc.2CVE reference, GitHub_M · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Missing Authentication for Critical Functionality
Missing Authentication for Critical Functionality represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.