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TI-2025-24590 Aliases CVE-2025-35435GHSA-w2x7-fc9j-4572

CISA Thorium download stream divide by zero

Priority MEDIUM 57CWE-369Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-369.

Summary

CISA Thorium accepts a stream split size of zero then divides by this value. A remote, authenticated attacker could cause the service to crash. Fixed in commit 89101a6.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00435 38th percentileScored 2026-11-07
Fix Fixed Thorium (CISA): 89101a6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
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
CISAThorium1.0.0 to before 89101a689101a6Patch availableCNA
  • Thorium VendorCISA Affected 1.0.0 to before 89101a6 Fixed in 89101a6 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:cisa:thorium:*:*:*:*:*:*:*:*up to 1.1.2VulnerableCISA
  • cpe:2.3:a:cisa:thorium:*:*:*:*:*:*:*:* Versions up to 1.1.2 Vulnerable ·CISA

Remediation

  • Fix · CNA Thorium (CISA) Fixed in 89101a6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-35435
  2. 2026-10-03 Alias added: GHSA-w2x7-fc9j-4572

References

Advisory 2

Other 1

  • TI-2025-24585 CISA Thorium insecure downloaded file path validation CVSS 4.0MEDIUM 5.3
  • TI-2025-24589 CISA Thorium does not validate TLS connections to Elasticsearch CVSS 4.0LOW 2.3
  • TI-2025-24591 CISA Thorium account verification email error handling CVSS 4.0MEDIUM 6.9
  • TI-2025-24587 CISA Thorium does not rate limit account verification email messages CVSS 4.0MEDIUM 6.9
  • TI-2025-24586 CISA Thorium LDAP injection CVSS 4.0MEDIUM 5.3
  • TI-2025-24588 Insufficient session expiration in CISA Thorium CVSS 4.0LOW 2.3

Sources

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