Home/CVE/A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the `--
CVE
CVE-2026-48936
A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the `--
A flaw in Node.js Permission API can cause a local server to be started (via a Unix domain socket), even without the --allow-net permission. This vulnerability affects one supported release line: Node.js 26.
LOW · CVSS 3.3
EPSS 0.00149
EPSS exploitation odds0.15% · top 95%
Monitor
- No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
No Sigma yet — build one →
YARA rules0
Look this up elsewhere - one-click external pivots
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How to read a CVE - triage first, then detect and patch
This page is every public fact about CVE-2026-48936, cross-linked. Its job is to answer one question fast - does this need my attention now? - and then hand you the two things you do about it. Here is how an analyst reads it.
Triage: should I act now? Four signals, and they are not interchangeable:
CVSSseverity - how bad it is IF exploited, 0-10. A high CVSS alone is not urgency; a flaw can be a perfect 10 and never actually be attacked.
EPSSprobability - a model’s estimate of the chance it is exploited in the next 30 days, 0-1. This is the “will it actually happen” signal.
CISA KEVconfirmed - it is being exploited in the wild right now. The strongest signal on the page; KEV beats any score.
Weaponisedavailability - public exploits / PoCs, and especially Metasploit modules rated Excellent / Great. Reliable, packaged exploit code means low-skill attackers can use it today.
How they combine: KEV, or a dependable Metasploit module, means patch now regardless of CVSS. High CVSS + low EPSS + no exploit is real but not an emergency - schedule it. Low CVSS but KEV-listed still gets patched now. The verdict above already weighed these for you; this is how it got there.
Then what - two workflows:
Detectwhen you cannot patch today, follow this CVE to the ATT&CK techniques it enables, then Build a SIEM detection (the green button) - author a rule, test it in Atomic, deploy it. That buys visibility while the patch waits.
PatchAffected products / packages tell you if you are exposed; Fixed versions by distribution and Vendor advisories give the exact version that closes it.
Reading order for the panels below: verdict + badges, then Public exploits / Metasploit (is it weaponised), then ATT&CK techniques + Sigma / IDS rules (can I detect it), then Affected products / packages + Fixed versions (am I exposed, what patches it), then Threat actors / IOCs (who uses it), then Scoring & timeline / references (the evidence).
EPSS exploitation probability
0.15%
Top 95%odds of exploitation in the next 30 days
CVSS metric silhouette
shape grows toward worst-case
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Tech impact
partial
CVSS vector breakdown
Exploitability - how they get in
Attack Vector
Network
Adjacent
Local
Physical
Attack Complexity
Low
High
Privileges Required
None
Low
High
User Interaction
None
Required
Scope
Unchanged
Changed
Impact - what breaks
Confidentiality
None
Low
High
Integrity
None
Low
High
Availability
None
Low
High
VECTOR
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N◆
ATT&CK techniques
1Techniques this CVE enables. Pills with a solid outline are high confidence - named directly in ATT&CK or Nuclei, or human-curated by CTID; the rest are inferred from the weakness type using MITRE's CVE Mapping Methodology and the CWE → CAPEC chain. Broad, generic-weakness guesses are filtered out. A small N× marks a technique that N independent sources agree on.
▤ Build a SIEM detection for these techniques▤
CAPEC attack patterns
12Attack patterns this CVE enables - the bridge from weakness to ATT&CK technique.
CAPEC-CAPEC-19 · Embedding Scripts within Scripts CAPEC-CAPEC-441 · Malicious Logic Insertion CAPEC-CAPEC-478 · Modification of Windows Service Configuration CAPEC-CAPEC-479 · Malicious Root Certificate CAPEC-CAPEC-502 · Intent Spoof CAPEC-CAPEC-503 · WebView Exposure CAPEC-CAPEC-536 · Data Injected During Configuration CAPEC-CAPEC-546 · Incomplete Data Deletion in a Multi-Tenant Environment CAPEC-CAPEC-550 · Install New Service CAPEC-CAPEC-551 · Modify Existing Service CAPEC-CAPEC-552 · Install Rootkit CAPEC-CAPEC-556 · Replace File Extension Handlers
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Weakness Classification
CWE-284Improper Access Control
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Related CVEs
4CVEs linked to this one by a shared weakness (CWE) or affected product - joins on data already in the engine, with the reason shown per row.
CVE-2001-0781
Buffer overflow in SpoonFTP 1.0.0.12 allows remote attackers to execute arbitrar...
same CWE-284
CVE-2008-2947
Cross-domain vulnerability in Microsoft Internet Explorer 5.01 SP4, 6, and 7 all...
same CWE-284
CVE-2009-2092
IBM WebSphere Application Server (WAS) 7.0 before 7.0.0.5 does not properly read...
same CWE-284
CVE-2009-2631
Multiple clientless SSL VPN products that run in web browsers, including Stoneso...
same CWE-284
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Fixed versions by distribution
36The package version that resolves this CVE on each Linux distribution, from the vendor’s published security data. fixed in shows a patched version exists; open means the package is listed as affected with no fix yet.
suse sle15nodejs10 open
suse sle15nodejs10-devel open
suse sle15nodejs10-docs open
suse sle15nodejs12 open
suse sle15nodejs12-devel open
suse sle15nodejs12-docs open
suse sle15nodejs14 open
suse sle15nodejs14-devel open
suse sle15nodejs14-docs open
suse sle15nodejs16 open
suse sle15nodejs16-devel open
suse sle15nodejs16-docs open
suse sle15nodejs18 open
suse sle15nodejs18-devel open
suse sle15nodejs18-docs open
suse sle15nodejs20 open
suse sle15nodejs20-devel open
suse sle15nodejs20-docs open
suse sle15nodejs22 open
suse sle15nodejs22-devel open
suse sle15nodejs22-docs open
suse sle15nodejs24 open
suse sle15nodejs24-devel open
suse sle15nodejs24-docs open
suse sle15nodejs8 open
suse sle15nodejs8-devel open
suse sle15nodejs8-docs open
suse sle15npm10 open
suse sle15npm12 open
suse sle15npm14 open
suse sle15npm16 open
suse sle15npm18 open
suse sle15npm20 open
suse sle15npm22 open
suse sle15npm24 open
suse sle15npm8 open
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Vendor Advisories
1suse-csafopenSUSE-SU-2026:11110-1
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References & Sources
1Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.