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Back to active CVEs
Medium · CVSS 4.8CVE-2026-54442GHSA-C6Q7-WQW2-H65W

NationalSecurityAgency/emissary: Incomplete fix for CVE-2026-35571: SSRFCVE-2026-54442

Answer in brief

CVE-2026-54442 records a Medium severity (CVSS 4.8) vulnerability in NationalSecurityAgency/emissary: Incomplete fix for CVE-2026-35571: SSRF. The current sources do not mark it as known exploited. The current feed maps NationalSecurityAgency/emissary (generic), gov.nsa.emissary:emissary (maven), gov.nsa.emissary:emissary (maven). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Nov 5, 2026Updated Nov 5, 2026Source checked Nov 5, 2026First seen by HOL Oct 30, 2026Material review Nov 5, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.8
Exploitation
Not marked as known exploited
Affected software
3 mapped packages or products
Fix availability
Available

Why this deserves its current priority

CVSS is 4.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps NationalSecurityAgency/emissary (generic), gov.nsa.emissary:emissary (maven), gov.nsa.emissary:emissary (maven). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
NationalSecurityAgency/emissarygeneric<8.51.08.51.0
gov.nsa.emissary:emissarymaven<8.51.08.51.0
gov.nsa.emissary:emissarymaven>=0 <8.51.08.51.0

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for NationalSecurityAgency/emissary, gov.nsa.emissary:emissary, gov.nsa.emissary:emissary.
  2. 2Review the reported fix. Update NationalSecurityAgency/emissary to 8.51.0; gov.nsa.emissary:emissary to 8.51.0; gov.nsa.emissary:emissary to 8.51.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  2. Source modified

    Nov 5, 2026

    Evidence: source:cvelist:source_dates:source-dates:record

  3. First seen by HOL

    Oct 30, 2026

Sources and claim methodology

  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
  • GitHub security advisorygithub.com
Upstream source description

Emissary is a P2P based data-driven workflow engine. Prior to 8.51.0, the VALID_LINK validation in src/main/java/emissary/server/mvc/NavAction.java accepts protocol-relative URLs when processing configured navigation links. Browser URL normalization can interpret these accepted strings as external origins. The authoritative advisory attributes open redirect, server-side request forgery, and cloud metadata access to this bypass, but it identifies neither the server-side dereference path nor how navigation-link processing reaches that path. This issue is fixed in version 8.51.0.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • KurrentDB: Privileged access to read $all enables arbitrary file read and GET-only SSRFAlso CWE-918
  • Kubeflow Pipelines: Unauthenticated SSRF vulnerability in Kubeflow Pipelines TensorBoard proxyAlso CWE-918
  • Kubeflow Pipelines: Unauthenticated server-side request forgery in the frontend http/https artifact source via decimal-IP bypass of the bucket validatorAlso CWE-918
  • Kubeflow Pipelines: Unauthenticated SSRF through artifact provider endpointsAlso CWE-918
  • Kubeflow Pipelines — API server fetches a caller-supplied pipelineURL without host validationAlso CWE-918

Record context

Vulnerability class
SSRF
EPSS
Not reported
CWE IDs
CWE-918
Source
CVE List V5
Source checked
Nov 5, 2026
References
8 linked sources
Open source record