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TI-2020-20043 Aliases CVE-2020-37279GHSA-hh4m-hjw2-vfg7

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Priority HIGH 75CWE-78Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
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-78.

Summary

easy-pdf-merge versions 0.1.0 through 0.2.6 contain an OS command injection flaw (CWE-78) in the merge function. The source paths, destination path and maxHeap option are passed to child_process.exec() through a shell without neutralizing shell metacharacters. A remote attacker with no privileges and no user interaction can run commands with the privileges of the Node.js process by supplying crafted file names or options. Public proof-of-concept code exists according to CISA SSVC, and no exploitation is listed in CISA KEV.

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

Description from the CNA

easy-pdf-merge 0.1.0 through 0.2.6 contains an OS command injection vulnerability that allows attackers to execute commands by injecting shell metacharacters into source paths, destination path, or maxHeap option. Attackers can supply file names or options containing double quotes, semicolons, $() or backticks, which child_process.exec() runs through a shell with the Node.js process privileges.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.0188 79th percentileScored 2026-11-07
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
karuppiah7890easy-pdf-merge0.1.0 – 0.2.6—No fix listedCNA
  • easy-pdf-merge Vendorkaruppiah7890 Affected 0.1.0 – 0.2.6 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for easy-pdf-merge.

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

Timeline

  1. 2026-10-12 Threatist record created from CVE-2020-37279
  2. 2026-10-13 Alias added: GHSA-hh4m-hjw2-vfg7
  3. 2026-10-13 CISA SSVC decision points changed
  4. 2026-10-13 Priority changed: MEDIUM → HIGH

References

Patch 2

Other 2

Sources

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