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TI-2026-65204 Aliases CVE-2026-101903GHSA-c29m-xwm3-cm6r

Axios: ReDoS in fromDataURI data: URL parser freezes the Node event loop (DoS)

Priority HIGH 69CWE-1333Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
Present
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-1333.

Summary

Axios is a promise-based HTTP client for the browser and Node.js. From 1.16.1 until 1.20.0, the RFC 2397 regular expression allows slash characters on both sides of the media-type separator. An application passes an attacker-controlled malformed data URL containing many slash characters and no comma. the JavaScript regular-expression engine explores many separator placements before rejecting the URL. Synchronous excessive backtracking can block the Node.js event loop and cause denial of service. The affected identifiers are fromDataURI, DATA_URL_PATTERN, data:. This issue is fixed in version 1.20.0.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00436 38th percentileScored 2026-11-07
Fix Fixed axios (axios): 1.20.0axios (npm): 1.20.0Red Hat: 3 advisories

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
axiosaxios1.16.1 to before 1.20.01.20.0Patch availableCNA
—axios (npm)1.16.1 to before 1.20.01.20.0Patch availableGHSA-c29m-xwm3-cm6r
  • axios Vendoraxios Affected 1.16.1 to before 1.20.0 Fixed in 1.20.0 Patch available CNA
  • axios (npm) Vendor— Affected 1.16.1 to before 1.20.0 Fixed in 1.20.0 Patch available GHSA-c29m-xwm3-cm6r

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:axios:axios:*:*:*:*:*:*:*:*——axios
  • cpe:2.3:a:axios:axios:*:*:*:*:*:*:*:* Versions — — ·axios

Remediation

  • Fix · CNA axios (axios) Fixed in 1.20.0
  • Fix · GHSA-c29m-xwm3-cm6r axios (npm) Fixed in 1.20.0 Advisory →

Red Hat 3 advisories

  • RHSA-2026:74872 Released 2026-10-02 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images grafana13.2-13.2.1-0.9.hum1@aarch64, grafana13.2-13.2.1-0.9.hum1@src, grafana13.2-13.2.1-0.9.hum1@x86_64
  • RHSA-2026:74871 Released 2026-10-02 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images grafana12.4-12.4.12-0.3.hum1@aarch64, grafana12.4-12.4.12-0.3.hum1@src, grafana12.4-12.4.12-0.3.hum1@x86_64
  • RHSA-2026:74869 Released 2026-10-02 · Red Hat rating Important
    Red Hat Hardened Images RPMs Security Update
    • Red Hat Hardened Images grafana13.1-13.1.6-0.6.hum1@aarch64, grafana13.1-13.1.6-0.6.hum1@src, grafana13.1-13.1.6-0.6.hum1@x86_64

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Hardened ImagesFixed RHSA-2026:74869, RHSA-2026:74871, RHSA-2026:74872
Not affected: 1 product
  • Red Hat Hardened Images

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-101903
  2. 2026-10-03 Alias added: GHSA-c29m-xwm3-cm6r

References

Advisory 1

Other 5

  • TI-2026-30422 Server-side request forgery in axios CVSS 3.1CRITICAL 10.0
  • TI-2026-65210 Axios: Prototype Pollution Gadget in axios toFormData Options CVSS 4.0HIGH 8.3
  • TI-2026-32427 Server-side request forgery in axios CVSS 3.1HIGH 8.6
  • TI-2026-65207 Axios: ReDoS (O(N²)) in shouldBypassProxy host normalization, reachable via untrusted redirect Location CVSS 4.0HIGH 8.2
  • TI-2026-65202 Axios: Denial of Service via Unhandled 'error' Event in HTTP/2 ClientHttp2Session Initialization CVSS 4.0HIGH 8.2
  • TI-2026-65206 Axios: Node HTTP adapter prototype-pollution gadget allows request socket hijack via inherited createConnection CVSS 4.0HIGH 7.6
See all 55 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences