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TI-2026-63277 Aliases CVE-2026-94040GHSA-q426-w6qm-jw5g

vas3k TaxHacker actions.ts testLLMProviderAction server-side request forgery

Priority HIGH 70CWE-918Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Information disclosure
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-918 and the CVSS impact.

Summary

A flaw has been found in vas3k TaxHacker up to 0.8.5. Affected by this vulnerability is the function testLLMProviderAction of the file app/(app)/apps/settings/actions.ts. Executing a manipulation of the argument provider/apiKey/model/baseUrl can lead to server-side request forgery. The attack may be performed from remote. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00532 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vas3kTaxHacker0.8.0; 0.8.1; 0.8.2; 0.8.3; 0.8.4; 0.8.5—No fix listedCNA
  • TaxHacker Vendorvas3k Affected 0.8.0; 0.8.1; 0.8.2; 0.8.3; 0.8.4; 0.8.5 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:vas3k:taxhacker:*:*:*:*:*:*:*:*——vas3k
  • cpe:2.3:a:vas3k:taxhacker:*:*:*:*:*:*:*:* Versions — — ·vas3k

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-94040
  2. 2026-10-03 Alias added: GHSA-q426-w6qm-jw5g

References

Exploit 1

Other 1

  • TI-2026-63276 vas3k TaxHacker Invoice PDF Renderer actions.ts generateInvoicePDF server-side request forgery CVSS 4.0MEDIUM 6.9
  • TI-2026-54299 vas3k TaxHacker Email Sync imap-client.ts buildImapConfig server-side request forgery CVSS 4.0MEDIUM 5.3
  • TI-2026-54300 vas3k TaxHacker JWT Secret config.ts envSchema.parse hard-coded credentials CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences