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TI-2021-06037 Aliases CVE-2021-23339GHSA-2w7w-2j92-44hx

HTTP Request Smuggling

Priority LOW 30CWE-444Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub.

Summary

This affects all versions before 10.1.14 and from 10.2.0 to 10.2.4 of package com.typesafe.akka:akka-http-core. It allows multiple Transfer-Encoding headers.

Why it matters now

EPSS 0.00711 53rd percentileScored 2026-11-07
Fix Fixed com.typesafe.akka:akka-http-core (Maven): 10.2.4, 10.1.14

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
—com.typesafe.akka:akka-http-coreall versions before 10.1.14 and from 10.2.0 to 10.2.4—No fix listedCNA
—com.typesafe.akka:akka-http-core (Maven)10.2.0 to before 10.2.410.2.4Patch availableGHSA-2w7w-2j92-44hx
—com.typesafe.akka:akka-http-core (Maven)before 10.1.1410.1.14Patch availableGHSA-2w7w-2j92-44hx
  • com.typesafe.akka:akka-http-core Vendor— Affected all versions before 10.1.14 and from 10.2.0 to 10.2.4 Fixed in — No fix listed CNA
  • com.typesafe.akka:akka-http-core (Maven) Vendor— Affected 10.2.0 to before 10.2.4 Fixed in 10.2.4 Patch available GHSA-2w7w-2j92-44hx
  • com.typesafe.akka:akka-http-core (Maven) Vendor— Affected before 10.1.14 Fixed in 10.1.14 Patch available GHSA-2w7w-2j92-44hx

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:lightbend:akka-http:*:*:*:*:*:*:*:*before 10.1.14; 10.2.0 to before 10.2.4VulnerableLightbend
  • cpe:2.3:a:lightbend:akka-http:*:*:*:*:*:*:*:* Versions before 10.1.14; 10.2.0 to before 10.2.4 Vulnerable ·Lightbend

Remediation

  • Fix · GHSA-2w7w-2j92-44hx com.typesafe.akka:akka-http-core (Maven) Fixed in 10.2.4 Advisory →
  • Fix · GHSA-2w7w-2j92-44hx com.typesafe.akka:akka-http-core (Maven) Fixed in 10.1.14 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-23339
  2. 2026-10-03 Alias added: GHSA-2w7w-2j92-44hx

References

Advisory 1

Other 3

Sources

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