CVE-2026-42035

HIGHNVD 7.47.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.4 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 68% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this weekElevated
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, a prototype pollution gadget exists in the Axios HTTP adapter (lib/adapters/http.js) that allows an attacker to inject arbitrary HTTP headers into outgoing requests. The vulnerability exploits duck-type checking of the data payload, where if Object.prototype is polluted with getHeaders, append, pipe, on, once, and Symbol.toStringTag, Axios misidentifies any plain object payload as a FormData instance and calls the attacker-controlled getHeaders() function, merging the returned headers into the outgoing request. The vulnerable code resides exclusively in lib/adapters/http.js. The prototype pollution source does not need to originate from Axios itself — any prototype pollution primitive in any dependency in the application's dependency tree is sufficient to trigger this gadget. This vulnerability is fixed in 1.15.1 and 0.31.1.

CVSS v3
7.4
EG Score
7.4(medium)
EG Risk
49(Track*)
EG Risk 49/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity74% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
0%
EPSS %ILE
33%
KEV
Not listed

Published

April 24, 2026

Last Modified

April 27, 2026

Advisory Details (1)

Auto-updated Jun 12, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Header Injection via Prototype Pollution · Advisory · axios/axios · GitHub

https://github.com/axios/axios/security/advisories/GHSA-6chq-wfr3-2hj9

Vendor Advisories for CVE-2026-42035(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatmulticluster-engine/console-mce-rhel9:17809108882026-06-11redhat
redhatrhacm2/console-rhel9:17806008232026-06-11redhat
redhatrhoai/odh-mod-arch-model-registry-rhel9:17804671472026-06-10redhat
redhataxios2026-06-10redhat
redhatrhmtc/openshift-migration-ui-rhel8:17805907172026-06-10redhat
redhatquay/quay-rhel8:17808913952026-06-09redhat
redhatrhtas/rhtas-console-ui-rhel9:17799715062026-06-08redhat
redhatmulticluster-engine/console-mce-rhel9:17809175312026-06-08redhat
redhatrhacm2/console-rhel9:17808767342026-06-08redhat
redhatquay/quay-rhel8:17798114732026-06-04redhat
redhatquay/quay-rhel8:17798222612026-06-03redhat
redhatquay/quay-rhel8:17798114122026-06-02redhat
redhatquay/quay-rhel9:17799222052026-06-02redhat
redhatdevspaces/dashboard-rhel9:17793412892026-05-28redhat
redhatrhdh/rhdh-hub-rhel9:17798415862026-05-27redhat
redhatquay/quay-rhel8:17796893922026-05-26redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17793715942026-05-26redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17792930132026-05-26redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17786450992026-05-20redhat
redhatopenshift4/ose-agent-installer-ui-rhel9:17785393382026-05-19redhat
redhatmulticluster-engine/console-mce-rhel9:17785326102026-05-19redhat
redhatquay/quay-rhel9:17792040862026-05-19redhat
redhatmulticluster-engine/console-mce-rhel9:17783838632026-05-14redhat
redhatmulticluster-engine/console-mce-rhel9:17785113482026-05-14redhat
redhatnetwork-observability/network-observability-console-plugin-rhel9:17785104612026-05-13redhat
redhatopenshift-service-mesh/kiali-rhel9:17781639092026-05-12redhat
redhatopenshift-service-mesh/kiali-rhel9:17781639862026-05-12redhat
redhatopenshift-service-mesh/kiali-rhel9:17781640422026-05-12redhat
redhatopenshift-service-mesh/kiali-rhel9:17781642082026-05-12redhat
redhatopenshift-service-mesh/kiali-rhel8:17781913782026-05-12redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFixed inDependents
axios—0.31.1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(19)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 10× in last 7d / 34× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 115 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-25 14:18 UTCEPSS rescore
  4. 2026-07-24 14:17 UTCEPSS rescore
  5. 2026-07-23 14:18 UTCEPSS rescore
  6. 2026-07-23 03:11 UTCEG score recompute
  7. 2026-07-22 14:08 UTCEPSS rescore
  8. 2026-07-21 15:24 UTCEPSS rescore
  9. 2026-07-20 17:08 UTCEPSS rescore
  10. 2026-07-20 16:34 UTCOSV refresh
  11. 2026-07-19 02:29 UTCEPSS rescore
  12. 2026-07-18 10:04 UTCEPSS rescore
  13. 2026-07-16 17:03 UTCEPSS rescore
  14. 2026-07-15 16:57 UTCEPSS rescore
  15. 2026-07-15 02:00 UTCEPSS rescore
  16. 2026-07-13 22:30 UTCEPSS rescore
  17. 2026-07-13 06:13 UTCEPSS rescore
  18. 2026-07-13 06:13 UTCEPSS rescore
  19. 2026-07-12 05:46 UTCEPSS rescore
  20. 2026-07-11 08:27 UTCEPSS rescore
  21. 2026-07-09 19:10 UTCEPSS rescore
  22. 2026-07-08 15:15 UTCEPSS rescore
  23. 2026-07-07 13:46 UTCEPSS rescore
  24. 2026-07-06 16:27 UTCEPSS rescore
  25. 2026-07-06 16:27 UTCEPSS rescore
Show 75 more
  1. 2026-07-06 02:23 UTCEPSS rescore
  2. 2026-07-06 02:23 UTCEPSS rescore
  3. 2026-07-05 02:30 UTCEPSS rescore
  4. 2026-07-04 06:31 UTCEPSS rescore
  5. 2026-07-01 15:06 UTCEPSS rescore
  6. 2026-06-30 23:22 UTCEPSS rescore
  7. 2026-06-29 14:06 UTCEPSS rescore
  8. 2026-06-28 14:07 UTCEPSS rescore
  9. 2026-06-28 04:56 UTCEPSS rescore
  10. 2026-06-27 03:08 UTCEPSS rescore
  11. 2026-06-25 13:49 UTCEPSS rescore
  12. 2026-06-25 13:49 UTCEPSS rescore
  13. 2026-06-24 14:05 UTCEPSS rescore
  14. 2026-06-23 21:33 UTCEPSS rescore
  15. 2026-06-22 14:25 UTCEPSS rescore
  16. 2026-06-22 14:25 UTCEPSS rescore
  17. 2026-06-21 14:56 UTCEPSS rescore
  18. 2026-06-21 14:56 UTCEPSS rescore
  19. 2026-06-21 01:59 UTCEPSS rescore
  20. 2026-06-19 19:25 UTCEPSS rescore
  21. 2026-06-18 17:52 UTCEPSS rescore
  22. 2026-06-18 17:52 UTCEPSS rescore
  23. 2026-06-17 17:53 UTCEPSS rescore
  24. 2026-06-16 17:52 UTCEPSS rescore
  25. 2026-06-15 17:49 UTCEPSS rescore
  26. 2026-06-15 01:52 UTCVendor advisory
  27. 2026-06-14 11:36 UTCVendor advisory
  28. 2026-06-13 23:00 UTCEPSS rescore
  29. 2026-06-12 23:12 UTCEPSS rescore
  30. 2026-06-12 23:12 UTCEPSS rescore
  31. 2026-06-12 01:59 UTCVendor advisory
  32. 2026-06-11 14:00 UTCEPSS rescore
  33. 2026-06-11 13:30 UTCVendor advisory
  34. 2026-06-10 22:18 UTCEPSS rescore
  35. 2026-06-10 13:55 UTCVendor advisory
  36. 2026-06-10 13:22 UTCEPSS rescore
  37. 2026-06-10 13:22 UTCEPSS rescore
  38. 2026-06-10 01:27 UTCVendor advisory
  39. 2026-06-09 12:58 UTCVendor advisory
  40. 2026-06-09 00:30 UTCVendor advisory
  41. 2026-06-08 14:17 UTCEPSS rescore
  42. 2026-06-08 14:17 UTCEPSS rescore
  43. 2026-06-08 08:55 UTCVendor advisory
  44. 2026-06-07 20:27 UTCVendor advisory
  45. 2026-06-07 15:25 UTCEPSS rescore
  46. 2026-06-07 15:25 UTCEPSS rescore
  47. 2026-06-07 07:58 UTCVendor advisory
  48. 2026-06-06 19:30 UTCVendor advisory
  49. 2026-06-06 13:47 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
  51. 2026-06-06 06:39 UTCVendor advisory
  52. 2026-06-05 22:47 UTCEPSS rescore
  53. 2026-06-05 18:08 UTCVendor advisory
  54. 2026-06-05 06:10 UTCEPSS rescore
  55. 2026-06-05 06:10 UTCEPSS rescore
  56. 2026-06-05 04:59 UTCVendor advisory
  57. 2026-06-04 16:24 UTCVendor advisory
  58. 2026-06-04 13:12 UTCEPSS rescore
  59. 2026-06-04 13:12 UTCEPSS rescore
  60. 2026-06-04 03:55 UTCVendor advisory
  61. 2026-06-03 15:11 UTCVendor advisory
  62. 2026-06-03 02:42 UTCVendor advisory
  63. 2026-06-02 20:13 UTCEPSS rescore
  64. 2026-06-02 14:13 UTCVendor advisory
  65. 2026-06-02 01:44 UTCVendor advisory
  66. 2026-06-01 13:52 UTCEPSS rescore
  67. 2026-06-01 13:52 UTCEPSS rescore
  68. 2026-06-01 13:10 UTCVendor advisory
  69. 2026-05-31 22:30 UTCEPSS rescore
  70. 2026-05-31 22:30 UTCEPSS rescore
  71. 2026-05-31 00:16 UTCEPSS rescore
  72. 2026-05-31 00:16 UTCEPSS rescore
  73. 2026-05-31 00:16 UTCEPSS rescore
  74. 2026-05-29 13:44 UTCEPSS rescore
  75. 2026-05-29 13:44 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-42035?
CVE-2026-42035 is a high vulnerability published on April 24, 2026. Axios is a promise based HTTP client for the browser and Node.js. Prior to 1.15.1 and 0.31.1, a prototype pollution gadget exists in the Axios HTTP adapter (lib/adapters/http.js) that allows an attacker to inject arbitrary HTTP headers into outgoing requests. The vulnerability exploits duck-type…
When was CVE-2026-42035 disclosed?
CVE-2026-42035 was first published in the National Vulnerability Database on April 24, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42035 actively exploited?
CVE-2026-42035 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.1% of all scored CVEs.
What is the CVSS score of CVE-2026-42035?
CVE-2026-42035 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-42035?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42035, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-42035

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