CVE-2026-42264

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.7%, top 49% 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 — Patch released this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.1Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making them exploitable as prototype pollution gadgets. When Object.prototype is polluted by another dependency in the same process, axios silently picks up these polluted values on every outbound HTTP request. This issue has been patched in version 1.15.2.

CVSS v3
9.1
EG Score
9.1(medium)
EG Risk
57(Track*)
EG Risk 57/100SSVC: 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
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
51%
KEV
Not listed

Published

May 8, 2026

Last Modified

September 4, 2026

Advisory Details (10)

Auto-updated Aug 29, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github, redhat.
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:37288
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:37287
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:36207
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:33173
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:20938
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:20889
github Patch Available🟡 PoC Available

Prototype pollution read-side gadgets in HTTP adapter allow credential injection and request hijacking · Advisory · axios/axios · GitHub

https://github.com/axios/axios/security/advisories/GHSA-q8qp-cvcw-x6jj
github_release Patch Available

v1.15.2

Patch available: axios/axios v1.15.2

https://github.com/axios/axios/releases/tag/v1.15.2
github_pr Patch Available

fix: more header pollutions

Patch available: axios/axios v1.15.2 (PR #10779 merged 2026-04-20)

https://github.com/axios/axios/pull/10779
github_commit Patch Available

commit 47915144662f (axios/axios)

Patch available: axios/axios v1.15.2 (contains commit 47915144662f)

https://github.com/axios/axios/commit/47915144662f2733e6c051bdcb895a8c8f0586aa

Vendor Advisories for CVE-2026-42264(13)

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

Patch Availability(14)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatdevspaces/code-rhel9:17877627932026-09-01redhat
ubuntunode-axios (1.6.8+dfsg-2ubuntu0.1~esm1) @ noble2026-08-28ubuntu
redhatrhoai/odh-mod-arch-model-registry-rhel9:17872506172026-08-27redhat
redhatmta/mta-ui-rhel9:17851690132026-08-04redhat
redhatansible-automation-platform-27/gateway-rhel9:17839194862026-07-20redhat
redhataxios2026-07-20redhat
redhatrhmtc/openshift-migration-ui-rhel8:17836905322026-07-20redhat
redhatopenshift-service-mesh/kiali-rhel9:17834455932026-07-09redhat
redhatopenshift-service-mesh/kiali-rhel9:17834455292026-07-09redhat
redhatopenshift-service-mesh/kiali-rhel9:17834455462026-07-09redhat
redhatadvanced-cluster-security/rhacs-main-rhel9:17833525892026-07-07redhat
redhatopenshift-service-mesh/kiali-rhel9:17822018122026-06-29redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17792930132026-05-26redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17793715942026-05-26redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
node-axios0.21.1+dfsg-1 ... 1.8.4+dfsg-1 (40 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
node-axios1.11.0+dfsg-1 ... 1.8.4+dfsg-1 (20 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
node-axios1.11.0+dfsg-1 ... 1.8.4+dfsg-1 (10 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
node-axios1.11.0+dfsg-1 ... 1.8.4+dfsg-1 (7 versions)1.15.2-1—
npm(1)
PackageVulnerable rangeFixed inDependents
axios—1.15.2—

Weakness Classification(2)

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

Additional Vendor Advisories

(1)

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 / 87× 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 240 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42264?
CVE-2026-42264 is a critical vulnerability published on May 8, 2026. Axios is a promise based HTTP client for the browser and Node.js. From version 1.0.0 to before version 1.15.2, fFive config properties (auth, baseURL, socketPath, beforeRedirect, and insecureHTTPParser) in the HTTP adapter are read via direct property access without hasOwnProperty guards, making…
When was CVE-2026-42264 disclosed?
CVE-2026-42264 was first published in the National Vulnerability Database on May 8, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42264 actively exploited?
CVE-2026-42264 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 48.6% of all scored CVEs.
What is the CVSS score of CVE-2026-42264?
CVE-2026-42264 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-42264?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42264, 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-2026-42264

Explore →

Is Your Infrastructure Affected by CVE-2026-42264?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs