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TI-2026-70539 Aliases CVE-2026-108540GHSA-wv44-gq26-hmfv

OS command injection in OpenSpug Spug File Transfer

Priority HIGH 76CWE-77Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-77.

Summary

OpenSpug Spug up to 3.4.0/4.0.1 contains an OS command injection flaw (CWE-78) in the File Transfer component. The /exec/transfer endpoint does not neutralize special elements in manipulated input, so attacker-controlled text reaches an operating system command. A remote attacker with low privileges can execute commands without user interaction. A public exploit has been published, and the vendor did not respond to early disclosure contact.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Description from the CNA

A flaw has been found in OpenSpug Spug up to 3.4.0/4.0.1. This impacts an unknown function of the file /exec/transfer of the component File Transfer. Executing a manipulation can lead to os command injection. The attack may be launched remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01703 77th 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
No
Technical impact
Total

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

Affected products

VendorProductAffected versionsFixed inStatusSource
OpenSpugSpug3.0; 3.1; 3.2; 3.3; 3.4.0; 4.0.0; 4.0.1—No fix listedCNA
  • Spug VendorOpenSpug Affected 3.0; 3.1; 3.2; 3.3; 3.4.0; 4.0.0; 4.0.1 Fixed in — No fix listed CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:openspug:spug:*:*:*:*:*:*:*:*——OpenSpug
  • cpe:2.3:a:openspug:spug:*:*:*:*:*:*:*:* Versions — — ·OpenSpug

Remediation

The sources list no fixed version for OpenSpug Spug.

Written with Claude Haiku 5.5 from the sources below · 2026-10-29

Timeline

  1. 2026-10-11 Threatist record created from CVE-2026-108540
  2. 2026-10-11 Alias added: GHSA-wv44-gq26-hmfv
  3. 2026-10-14 CISA SSVC decision points changed
  4. 2026-10-14 Priority changed: MEDIUM → HIGH

References

Exploit 1

  • TI-2026-61677 Spug through 3.4.0 Remote Code Execution via ping_check CVSS 4.0HIGH 8.7

Sources

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