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Fencer Intel
high 8.2

CVE-2026-101901 json

Axios: Denial of Service via Unhandled 'error' Event in HTTP/2 ClientHttp2Session Initialization

published last mo. modified last mo. also EUVD-2026-88370 , GHSA-542g-h47m-68v8

cvss
8.2
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits
0
none known

Summary

Axios is a promise-based HTTP client for the browser and Node.js. From 1.13.0 until 1.20.0, Http2Sessions does not install adequate error handling for a ClientHttp2Session during Axios HTTP/2 session initialization or reuse. A request uses httpVersion: 2 and the ClientHttp2Session emits an error during session initialization or reuse. The unhandled session error escapes normal Promise rejection handling. The uncaught error can terminate the Node.js process and cause denial of service. This issue is fixed in version 1.20.0.

Patch / fix

  • npm axios 1.20.0
  • axios axios 1.20.0
  • node-axios Debian 14 1.20.0-1

debian advisories DEBIAN-CVE-2026-101901

  • grafana12.4 hummingbird 1 12.4.12-0.3.hum1
  • grafana13.2 hummingbird 1 13.2.1-0.9.hum1
  • grafana13.1 hummingbird 1 13.1.6-0.6.hum1

red hat advisories RHSA-2026:74871RHSA-2026:74872RHSA-2026:74869

Is CVE-2026-101901 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-101901 updated cvss 7.5

axios: Axios: Denial of Service via unhandled error in HTTP/2 session initialization

  • Red Hat Hardened Images grafana13.1 13.1.6-0.6.hum1, grafana13.2 13.2.1-0.9.hum1, grafana12.4 12.4.12-0.3.hum1
    fixed: vendor fix RHSA-2026:74871
  • Red Hat Hardened Images jaeger 2.20.0-0.11.hum1
    not affected: component not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
yes
Technical impact
partial
Assessed
last mo.

Exploit prediction

0.54% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • github.com https://github.com/axios/axios/security/advisories/GHSA-542g-h47m-68v8 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
CNA 4.0 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected packages

ecosystem package affected fixed in
npm axios
>=1.13.0, <1.20.0
1.20.0

Affected products

  • axios axios

Classification

Weakness
  • CWE-400 Uncontrolled Resource Consumption

References

Sources

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CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.