vciy

CVE-2026-42043

INDEX BUILT · 2026-09-20

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Axios: Incomplete Fix for CVE-2025-62718 — NO_PROXY Protection Bypassed via RFC 1122 Loopback Subnet (127.0.0.0/8) in Axios 1.15.0

CVE-2026-420434 of 4 sources documented this
29

rank 29 = 0 + 25 + 0 + 4 + 0

rank@v1 · scheduled

Someone is already using it

CISA KEV catalog · public proof-of-concept · FIRST EPSS

EPSS 0.00661  ·  without this subject the record ranks 29

What it costs you if it fires

NVD CVSS base score, then the CNA's own

CVSS 10.0, from NVD  ·  without this subject the record ranks 4

It is getting worse, not staying still

FIRST EPSS series, rescorings and bad loads removed

no persisting rise in 365 days  ·  without this subject the record ranks 29

How much of the world it touches

NVD CPE configurations

2 products in the CPE ranges  ·  without this subject the record ranks 25

Someone else already set the date

CISA KEV remediation due date

no CISA due date  ·  without this subject the record ranks 29

Unaudited dollar value2 of 3 inputs carry a receipt
Exposure$14,100over the next 30 days, if this record is yours
Movementno material movementthe record holds only daily drift and scoring model releases
Basisassumeda published average, not your estate

$14,100 = $4.99M incident cost x 0.42806422275080447 exposure x 0.00661 likelihood

udv@v1 · unaudited · wrong for you until you say what you run

$4.99M is the cost of a breach that happened, from IBM Cost of a Data Breach Report 2026, global average. It is not the value of any asset of yours. That average already covers breaches of every severity, so scaling it by exposure understates a partial-impact record. That is an assumption, not a measurement. Your own asset value goes in the decision record.

Hindsight · the state

0.00661EPSSNOT IN KEVas of 2026-09-20
Severity7.2 HIGHreceipt
Harmunauthenticated · networkreceipt
Exploitationnone in held sources
Defenseunaffected versions publishedreceipt
Movementrisenreceipt
PLATEAU10Minimal movement since 2026-04-25, 66 days at 0.01, as of 2026-06-30. arc-rules@v1

Foresight · where to check next

No weakness class or product neighbourhood is held for this record, so this index cannot name anywhere to check next. That is an absence in the record, not a finding about the software.

Color is a claim, not decoration:the hostile worldthe defenseno signal

Sources disagree here.

Severity score
GitHub_M7.2 HIGHreceipt
NVD10 CRITICALreceipt
What it costs
GitHub_MPartial confidentiality and integrity loss, with impact beyond the vulnerable componentreceipt
NVDComplete confidentiality and integrity loss, with impact beyond the vulnerable componentreceipt

Both shown, dated. We don't pick winners. disagreement-rules@v1

Running axios? Check your version

A deterministic range check against the ranges this record publishes. It tells you where a version sits in the record, not whether your deployment is exploitable. No account needed.

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Harm, if it fires from the vector and the weakness

Written for the ticket you're about to file.

Reachnetwork-reachable · no privileges required · no user interaction · low attack complexityreceipt
ImpactPartial confidentiality and integrity loss, with impact beyond the vulnerable componentreceipt
Scored fromCVSS v3.1 · the CNA's vectorreceipt
Weakness classCWE-183 Permissive List of Allowed Inputs; CWE-441 Unintended Proxy or Intermediary ('Confused Deputy'); CWE-918 Server-Side Request Forgery (SSRF)receipt
Published consequencesCWE-183: Access Control: Bypass Protection Mechanism[email protected]

CISA KEV & Federal Remediation Deadline from the record and CISA

The fix, and how long it's been waiting.

First unaffected version, by branchaxios 0.31.1; axios 1.15.1receipt
Patch available sinceNo dated patch-availability record in held sources. The index holds reference URLs without dates and only the current revision of the CVE record, so the day a fix first existed cannot be derived. Only the versions it landed in.

Exploit Status & Known PoCs a ladder, not a score

Current rung: Nothing observed in held sources.

  • RUNG 1Nothing observed in held sources
  • RUNG 2Proof-of-concept published
  • RUNG 3Exploited in the wild · CISA KEV listed
  • RUNG 4Ransomware campaign use known

Authority who says so

CVSS, the CNA7.2 HIGHreceipt
CVSS, NVD10 CRITICALreceipt
Exploit probability0.00661 · top 50% of all CVEsreceipt
Blast breadth1 product across 1 vendorderived
Assigned byGitHub_Mreceipt
Recorded changes10 · last 19 Sep 2026derived

Affected & Fixed Versions as published

Affected productaxiosreceipt
Published rangesaxios < 0.31.1; axios >= 1.0.0 < 1.15.1receipt

A rung lights from a row in the index, never from an assessment. "Held sources" is the true scope of the claim: this index reads the CVE record, NVD, CISA KEV, FIRST's EPSS and public proof-of-concept repositories, and it does not observe attacks.

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What it is stated by the CNA

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, an attacker who can influence the target URL of an Axios request can use any address in the 127.0.0.0/8 range (other than 127.0.0.1) to completely bypass the NO_PROXY protection. This vulnerability is due to an incomplete for CVE-2025-62718, This vulnerability is fixed in 1.15.1 and 0.31.1. receipt

NVD's analysis a second authority

severity
10 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:N
weakness
CWE-183; CWE-441; CWE-918
affected versions
axios < 0.31.1; axios >= 1.0.0 < 1.15.1
also scored by
[email protected] 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N · 7.2 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N

The CNA scored it 7.2 and NVD 10. Both are shown because both were published; we do not pick one.

check it yourself github.com receipt

Movement the material steps

25 Apr 20260.00027
15 Jun 20260.00394 · scoring model v2026.06.15
30 Jun 20260.00661
Show all 10 observations
25 Apr 20260.00027
28 Apr 20260.00033
30 Apr 20260.00044
13 May 20260.00055
26 May 20260.0006
3 Jun 20260.0002
5 Jun 20260.00026
15 Jun 20260.00394
23 Jun 20260.00409
30 Jun 20260.00661

10 observations held. A highlighted step crossed a promotion threshold. A step marked with a scoring model moved because the instrument was replaced, not because the vulnerability changed. receipt

The full biography

EPSS 0.00661Published2026-04-24Index as of2026-06-30

The record had been public for 2 months when this index was last written.

Published 2026-04-24 receipt · Index as of 2026-06-30 derived

Siblings and hubs

Records related to this one

Its defect family

axios

Of the 3 records in this family that state one, this holds the highest EPSS percentile: 0.49247.

Grouped by shared product and weakness, not by shared vulnerability. Each record's own state is on its own page.

Family membership: held values

This record is one of a group, and the group's page describes all of them. This page is kept and dated, and the defect family's own page is the one we offer for indexing: the whole group.

Browse the index from here

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What usually comes next

Everything above needs no account. What is below is work: assembling it, scoping it to your estate, watching it, and handing it to someone else.

Everything on this page is free. Public data. Withholding it protects nothing.