Axios is a promise-based HTTP client for the browser and Node.js. From 1.15.0 until 1.20.0, Axios shouldBypassProxy applies a quadratic trailing-dot regular expression to redirect hostnames. HTTP_PROXY or HTTPS_PROXY is configured, NO_PROXY or no_proxy is non-empty, redirects are followed, and a crafted redirect Location contains many dots followed by a non-dot character. Hostname.replace(/.+$/, '') backtracks quadratically while processing the crafted redirect hostname. Synchronous regular-expression processing can block the Node.js event loop and cause denial of service. This issue is fixed in version 1.20.0.
CVE-2026-101906
This high-severity CVE scores 8.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4% (32nd percentile of EPSS-scored CVEs). 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).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 8.2
- EG Score
- 8.2HIGHmedium confidence
- EG Risk
- 68EG Risk 68/100CISA SSVC
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 computedSeverity82% × 45%Exploitation40% × 40%Automatability100% × 15%CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high. - EPSS PROB
- 0.4%
- EPSS %ILE
- 32nd
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
September 28, 2026
Last Modified
September 30, 2026
Advisory Details (4)
Auto-updated Sep 28, 2026v1.20.0
Patch available: axios/axios v1.20.0
https://github.com/axios/axios/releases/tag/v1.20.0commit d19040bda7a8 (axios/axios)
Patch available: axios/axios v1.20.0 (contains commit d19040bda7a8)
https://github.com/axios/axios/commit/d19040bda7a8be2f82c3c6e1a5bc03917daee39afix: harden runtime option handling
Patch available: axios/axios v1.20.0 (PR #11141 merged 2026-08-12)
https://github.com/axios/axios/pull/11141ReDoS (O(N²)) in shouldBypassProxy host normalization, reachable via untrusted redirect Location · Advisory · axios/axios · GitHub
https://github.com/axios/axios/security/advisories/GHSA-mghh-pgcx-3jjjVendor Advisories for CVE-2026-101906(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | grafana13-1-main-13.1.6-0.6.hum1 | 2026-10-02 | redhat |
| redhat | grafana12-4-main-12.4.12-0.3.hum1 | 2026-10-02 | redhat |
| redhat | grafana13-2-main-13.2.1-0.9.hum1 | 2026-10-02 | redhat |
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)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| axios | — | 1.20.0 | — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(3)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 18× in last 7d / 18× 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.
- 2026-10-04 03:01 UTCVendor advisory
- 2026-10-03 15:42 UTCEG score recompute
- 2026-10-03 15:42 UTCVendor advisory
- 2026-10-03 14:25 UTCEPSS rescore
- 2026-10-03 04:19 UTCVendor advisory
- 2026-10-02 17:00 UTCEG score recompute
- 2026-10-02 05:41 UTCEG score recompute
- 2026-10-01 19:49 UTCEPSS rescore
- 2026-09-30 17:56 UTCEG score recompute
- 2026-09-30 15:02 UTCEPSS rescore
- 2026-09-29 19:13 UTCEG score recompute
- 2026-09-29 15:20 UTCEPSS rescore
- 2026-09-29 07:47 UTCEG score recompute
- 2026-09-28 20:29 UTCEG score recompute
- 2026-09-28 19:29 UTCEG score recompute
- 2026-09-28 18:20 UTCEG score recompute
- 2026-09-28 17:40 UTCEG score recompute
- 2026-09-28 17:36 UTCMITRE cvelistV5first tracked
Related CVEs(same product + same vendor + same CWE)
Same product
10 shownnpm:axios
Same vendor
10 shownredhat:RHSA-2026:74869
Frequently asked(5)
What is CVE-2026-101906?
When was CVE-2026-101906 disclosed?
Is CVE-2026-101906 actively exploited?
What is the CVSS score of CVE-2026-101906?
How do I remediate CVE-2026-101906?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-101906
Is Your Infrastructure Affected by CVE-2026-101906?
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