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ip-address CVE-2026-101911

| EUVDEUVD-2026-88395 MEDIUM
Uncontrolled Resource Consumption (CWE-400)
2026-09-28 GitHub_M GHSA-h3mg-xc3c-68pw
Denial Of Service JavaScript npm Ip Address
6.3
CVSS 4.0 · Vendor: GitHub_M
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Severity by source

Vendor (GitHub_M) PRIMARY
6.3 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
3.7 LOW

Network-reachable and unauthenticated, but AC:H because impact needs an atypical 16-32 MiB input path that default size limits usually block; availability-only, transient, so A:L.

3.1 AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
4.0 AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
SUSE
5.3 MEDIUM
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Red Hat
5.3 MEDIUM
qualitative

Primary rating from Vendor (GitHub_M).

CVSS VectorVendor: GitHub_M

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

5
Patch available
Sep 28, 2026 - 19:01 EUVD
Metadata Corrected
Sep 28, 2026 - 18:40 vuln.today
tag: JavaScript added
Metadata Corrected
Sep 28, 2026 - 18:40 vuln.today
tag: npm added
Analysis Generated
Sep 28, 2026 - 18:22 vuln.today
CVE Published
Sep 28, 2026 - 17:46 cve.org
MEDIUM 6.3

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 1 npm packages depend on ip-address (1 direct, 0 indirect)

Ecosystem-wide dependent count for version 10.7.1.

DescriptionCVE.org

ip-address is a library for parsing and manipulating IPv4 and IPv6 addresses in JavaScript. Prior to 10.7.1, the Address6 constructor, Address6.isValid, and parse code in src/ipv6.ts accept unbounded strings and expand invalid characters through RE_BAD_CHARACTERS into large diagnostics. Material impact occurs only when an application accepts a very large attacker-controlled field and passes it to Address6 parsing without an earlier length bound. Common URL and header limits, and common body-parser defaults, generally constrain the effect; common defaults typically exclude 32 MiB fields. Megabyte-scale fields can cause a synchronous stall and high transient memory use, approximately 16 MiB can trigger an invalid string length exception, and process termination occurs at approximately 32 MiB. The affected entry points include Address6.isValid and construction paths that reach parse. This issue is fixed in version 10.7.1.

AnalysisAI

Denial of service in the ip-address JavaScript/npm library (all versions prior to 10.7.1) lets remote attackers stall or crash a Node.js process by supplying megabyte-scale strings to the IPv6 parsing paths - the Address6 constructor, Address6.isValid, and the underlying parse routine in src/ipv6.ts. An application is only exposed if it accepts an attacker-controlled field of roughly 16 MiB or more and passes it to those entry points without an earlier length bound; common URL, HTTP header, and default body-parser limits keep inputs well below the ~32 MiB needed to terminate the process, so default configurations typically exclude the impact and this is assessed as a low-to-moderate real-world risk that does not warrant emergency prioritization. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires that the consuming application (a) accepts an attacker-controlled field of megabyte scale - approximately 16 MiB to trigger an invalid-string-length exception and approximately 32 MiB to cause process termination - and (b) passes that field to Address6 construction, Address6.isValid, or the underlying parse path in src/ipv6.ts WITHOUT enforcing an earlier length bound. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a low-to-moderate real-world risk that does not warrant emergency prioritization. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Vendor-released patch: 10.7.1 - upgrade ip-address to 10.7.1 or later (npm install ip-address@^10.7.1), verify the resolved version in your lockfile, and rebuild/redeploy any service with a bundled dependency; details are in the release notes at https://github.com/beaugunderson/ip-address/releases/tag/v10.7.1 and the advisory at https://github.com/beaugunderson/ip-address/security/advisories/GHSA-h3mg-xc3c-68pw. … Detailed patch versions, workarounds, and compensating controls in full report.
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Vendor StatusVendor

SUSE

Severity: Moderate
Product Status
SUSE Linux Enterprise High Performance Computing 12 Affected
SUSE Linux Enterprise Module for Web and Scripting 15 SP7 Affected
SUSE Linux Enterprise Module for Web and Scripting 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected
SUSE Linux Enterprise Server 15 SP7 Affected

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CVE-2026-101911 vulnerability details – vuln.today
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