Unchecked Return Value to NULL Pointer Dereference in PDFDocumentHandler.cpp
Impact
The package muhammara before 2.6.0; all versions of package hummus are vulnerable to Denial of Service (DoS) when supplied with a maliciously crafted PDF file to be appended to another.
Patches
It has been patched in 2.6.0 for muhammara and not at all for hummus
Workarounds
Do not process files from untrusted sources
References
PR: https://github.com/julianhille/MuhammaraJS/pull/194 Issue: https://github.com/julianhille/MuhammaraJS/issues/191 Issue in hummus: https://github.com/galkahana/HummusJS/issues/293
Outline differences to https://nvd.nist.gov/vuln/detail/CVE-2022-25892
The difference is one is in src/deps/PDFWriter/PDFParser.cpp and the other is PDFDocumentHandler.cpp both is a null pointer but for different cases These are totally diffent issues, one is in reading a pdf the other is in appendending a maliciously crafted one. The function calls are different the versions in which they are solved are diffent.
Affected software
Click a technology to see all vulnerabilities affecting it.
| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | hummus | < 1.0.111 | 1.0.111 |
| npm package | muhammara | < 2.6.0 | 2.6.0 |
References
- https://github.com/julianhille/MuhammaraJS/security/advisories/GHSA-rcrx-fpjp-mfrw
- https://nvd.nist.gov/vuln/detail/CVE-2022-39381
- https://github.com/galkahana/HummusJS/issues/293
- https://github.com/julianhille/MuhammaraJS/issues/191
- https://github.com/julianhille/MuhammaraJS/pull/194
- https://github.com/galkahana/HummusJS/commit/a9bf2520ab5abb69f9328906e406fbebfb36159a
- https://github.com/julianhille/MuhammaraJS
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Weakness (CWE)
CWE-476, CWE-690- Platform
- npm
- Package
hummus, muhammara- Disclosed
- 02.11.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-rcrx-fpjp-mfrw - CC BY 4.0
Vulnerability history: muhammara
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 5
- First → latest
- 11.2022 06.2026
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 5
Disclosures per year
- 2022: 4
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 1
-
Unchecked Return Value to NULL Pointer Dereference in PDFDocumentHandler.cpp this entry
Know which vulnerabilities affect your application
With the DockRay integration and software inventory enabled, DockRay checks reported component versions against known vulnerabilities and notifies you about confirmed matches. Coverage depends on the supported technology and available advisory data.