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No exploitation reportedFix availableAwaiting NVD analysis

CVE-2026-125107

Muhammara: NULL pointer dereference in LZWDecode filter when DecodeParms omits EarlyChange key

No exploitation reported by the sources we read.

  • Published2026-11-09
  • Fixed in6.0.5
  • WeaknessCWE-476

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

Muhammara is a node module with c/cpp bindings to modify PDF with JavaScript for node or electron. Prior to 6.0.5, Muhammara PDFParser::CreateFilterForStream() in src/deps/PDFWriter/PDFParser.cpp dereferences a null PDFInteger pointer when a PDF stream uses the LZWDecode filter with a DecodeParms dictionary that omits the EarlyChange key. An application that processes an untrusted PDF and reads the affected stream can crash, causing a denial of service. This issue is fixed in version 6.0.5.

Timeline

dates in UTC
  1. 2026-11-0921:29CVE publishedCNA

Versions per branch

OSV
muhammara
BranchAffectedFixed in
6.0< 6.0.56.0.5

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Products declared by the CNA1 product

As GitHub_M, the CNA that assigned this CVE, declared them in the CVE record; versions as written.

  • julianhille MuhammaraJS
    Affected
    • = < 6.0.5no fix stated

Source: the CNA record (CVE Program), © The MITRE Corporation,CVE Terms of UseCVE recordupdated 2026-11-09

Fix

  1. Update muhammara to 6.0.5

Detection

Nuclei template
none so far
ProjectDiscovery
Exploit-DB
no entry
Exploit-DB
Metasploit modules
none listed
Metasploit Framework

Sources

Identifiers

Technical details

CVSS v3 Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
2026-11-09
GitHub Advisory
GHSA-fhp4-pr5j-46m5

Frequently asked questions

What is CVE-2026-125107?

Muhammara is a node module with c/cpp bindings to modify PDF with JavaScript for node or electron. Prior to 6.0.5, Muhammara PDFParser::CreateFilterForStream() in src/deps/PDFWriter/PDFParser.cpp dereferences a null PDFInteger pointer when a PDF stream uses the LZWDecode filter with a DecodeParms dictionary that omits the EarlyChange key. An application that processes an untrusted PDF and reads the affected stream can crash, causing a denial of service. This issue is fixed in version 6.0.5.

Is CVE-2026-125107 actively exploited?

Active exploitation of CVE-2026-125107 has not been confirmed.

What is the CVSS score for CVE-2026-125107?

CVE-2026-125107 has a CVSS v3 base score of 7.5 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

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