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Back to active CVEs
Medium · CVSS 4.3CVE-2026-50199

Wallos: Cross-user Fixer/API Layer credential consumption in exchange-rate refreshCVE-2026-50199

Answer in brief

CVE-2026-50199 records a Medium severity (CVSS 4.3) vulnerability in Wallos: Cross-user Fixer/API Layer credential consumption in exchange-rate refresh. The current sources do not mark it as known exploited. The current feed maps ellite/Wallos (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

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

Published Aug 31, 2026Updated Sep 8, 2026Source checked Oct 16, 2026First seen by HOL Aug 31, 2026Material review Sep 8, 2026
Upstream Advisory

Key facts

Risk
Medium · CVSS 4.3
Exploitation
Not marked as known exploited
Affected software
1 mapped package or product
Fix availability
Available

Why this deserves its current priority

CVSS is 4.3. 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 ellite/Wallos (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
PackageAffected rangeFixed version
ellite/Wallosgeneric<4.9.14.9.1

Recommended response

  1. 1Check inventory. Check lockfiles and deployed manifests for ellite/Wallos.
  2. 2Review the reported fix. Update ellite/Wallos to 4.9.1 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

  1. Published upstream

    Aug 31, 2026

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

  2. Source modified

    Sep 8, 2026

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

  3. First seen by HOL

    Aug 31, 2026

Sources and claim methodology

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

Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.9.1, endpoints/currency/update_exchange.php loads the first Fixer/API Layer credential globally instead of loading the credential for the authenticated user. As a result, a normal authenticated user without their own provider key can trigger exchange-rate refreshes using another user's stored provider credential. This issue has been patched in version 4.9.1.

Quoted source text, attributed separately from HOL analysis.

Related CVEs

  • OxiCloud 0.9.1 through 0.9.3 Incorrect Authorization via Share Ring CookieAlso CWE-863
  • ThinkCMF through 8.0.1 Incorrect Authorization in Admin REST APIAlso CWE-863
  • ClassroomIO through 1.0.0 Incorrect Authorization via Lesson Update and Delete RoutesAlso CWE-863
  • bitcoinj Payment Request PaymentSession.java url.openConnection server-side request forgerySame generic ecosystem
  • ImprintLab Medical-SAM-Adapter AutoBackend Model Loading autobackend.py session.get_modelmeta.custom_metadata_map eval injectionSame generic ecosystem
  • Ultralytics FastSAM AutoBackend Model Loading autobackend.py session.get_modelmeta.custom_metadata_map eval injectionSame generic ecosystem

Record context

Vulnerability class
Secret Exfiltration
EPSS
Not reported
CWE IDs
CWE-863
Source
CVE List V5
Source checked
Oct 16, 2026
References
2 linked sources
Open source record