CVE-2026-42044

CRITICALNVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.1 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 55% 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
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 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible modification of all JSON API responses — including privilege escalation, balance manipulation, and authorization bypass. The default transformResponse function at lib/defaults/index.js:124 calls JSON.parse(data, this.parseReviver), where this is the merged config object. Because parseReviver is not present in Axios defaults, not validated by assertOptions, and not subject to any constraints, a polluted Object.prototype.parseReviver function is called for every key-value pair in every JSON response, allowing the attacker to selectively modify individual values while leaving the rest of the response intact. This vulnerability is fixed in 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: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

April 24, 2026

Last Modified

August 24, 2026

Advisory Details (10)

Auto-updated Aug 1, 2026
🔬 Proof of concept available. Patch available. Sources: github, redhat.
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:20338
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:19375
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:19109
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:17699
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:17657
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:16542
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:16535
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:16534
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:16532
github Patch Available🟡 PoC Available

Invisible JSON Response Tampering via Prototype Pollution Gadget in `parseReviver` · Advisory · axios/axios · GitHub

Affected: 1.15.0)

https://github.com/axios/axios/security/advisories/GHSA-3w6x-2g7m-8v23

Vendor Advisories for CVE-2026-42044(20)

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

Patch Availability(29)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatmta/mta-ui-rhel9:17851690132026-08-04redhat
redhatautomation-gateway-0:2.5.20260715-1.el9ap2026-07-20redhat
redhatquay/quay-rhel9:17839558462026-07-16redhat
redhatrhacm2/console-rhel9:17834517292026-07-08redhat
redhatcontainer-native-virtualization/kubevirt-console-plugin-rhel9:17829179832026-07-07redhat
redhataxios2026-07-02redhat
redhatrhdh/rhdh-hub-rhel9:17827612442026-06-30redhat
redhatsatellite/iop-host-inventory-frontend-rhel9:17801051792026-06-16redhat
redhatsatellite/iop-vulnerability-frontend-rhel9:17810324952026-06-16redhat
redhatrhdh/rhdh-hub-rhel9:17811873422026-06-16redhat
redhatsatellite/iop-advisor-frontend-rhel9:17811816732026-06-16redhat
redhatdiscovery/discovery-ui-rhel9:17793951882026-06-15redhat
redhatmulticluster-engine/console-mce-rhel9:17809108882026-06-11redhat
redhatrhacm2/console-rhel9:17806008232026-06-11redhat
redhatrhmtc/openshift-migration-ui-rhel8:17805907172026-06-10redhat
redhatquay/quay-rhel8:17808913952026-06-09redhat
redhatrhacm2/console-rhel9:17808767342026-06-08redhat
redhatrhtas/rhtas-console-ui-rhel9:17799715062026-06-08redhat
redhatnetwork-observability/network-observability-console-plugin-rhel9:17805560692026-06-08redhat
redhatmulticluster-engine/console-mce-rhel9:17809175312026-06-08redhat
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-rhel8:17792930132026-05-26redhat
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

(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 14× in last 7d / 121× 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 235 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-42044?
CVE-2026-42044 is a critical vulnerability published on April 24, 2026. Axios is a promise based HTTP client for the browser and Node.js. From 1.0.0 to before 1.15.2, he Axios library is vulnerable to a Prototype Pollution "Gadget" attack that allows any Object.prototype pollution in the application's dependency tree to be escalated into surgical, invisible…
When was CVE-2026-42044 disclosed?
CVE-2026-42044 was first published in the National Vulnerability Database on April 24, 2026, with the most recent update on August 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42044 actively exploited?
CVE-2026-42044 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 54.6% of all scored CVEs.
What is the CVSS score of CVE-2026-42044?
CVE-2026-42044 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2026-42044?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42044, 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

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