CVE-2026-78637Public exploitNetwork attack vector

Operation subversion via leading-hyphen file paths

Published Aug 25, 2026 · Updated Aug 25, 2026

Argument injection in Fdawgs node-poppler allows attackers to subvert PDF utility operations via crafted paths in affected releases. The file-accepting methods in src/index.js append caller-controlled file_path operands to Poppler argument arrays without an end-of-options marker, so leading hyphens become utility switches. Reachability requires an integrating application to pass an attacker-influenced path; the demonstrated consequence is option injection and misleading successful processing, not command execution.

CVSS severity6.9
Medium
EPSS probability0.33%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Argument injection in Fdawgs node-poppler allows attackers to subvert PDF utility operations via crafted paths in affected releases. The file-accepting methods in src/index.js append caller-controlled file_path operands to Poppler argument arrays without an end-of-options marker, so leading hyphens become utility switches. Reachability requires an integrating application to pass an attacker-influenced path; the demonstrated consequence is option injection and misleading successful processing, not command execution.

The record

CVE
CVE-2026-78637
Published
Aug 25, 2026
Updated
Aug 25, 2026
Vendor
Fdawgs
Product
node-poppler
Classifications
CWE-88, CWE-74
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 25, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 25, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=10.0.0
  2. Affected versionversion=10.0.1
  3. Affected versionversion=9.1.0
  4. Affected versionversion=9.1.1
  5. Affected versionversion=9.1.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fdawgs · node-popplerversion=10.0.0; version=10.0.1; version=9.1.0; version=9.1.1; version=9.1.2

Published CVSS scores

7.3VulDBCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
6.9VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X
7.3VulDBCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
7.5VulDBAV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-88Argument Injection
CWE-74Injection

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo