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TI-2019-13942 Aliases CVE-2019-19330GHSA-x4px-pm9c-vmjm

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by…

Priority MEDIUM 49CWE-74Published · Updated

Key facts

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

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

Summary

The HTTP/2 implementation in HAProxy before 2.0.10 mishandles headers, as demonstrated by carriage return (CR, ASCII 0xd), line feed (LF, ASCII 0xa), and the zero character (NUL, ASCII 0x0), aka Intermediary Encapsulation Attacks.

Why it matters now

EPSS 0.04032 90th percentileScored 2026-11-07
Fix Fixed Red Hat: 4 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:*before 2.0.10VulnerableHAProxy
cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*18.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:*19.04VulnerableCanonical
cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:*19.10VulnerableCanonical
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
  • cpe:2.3:a:haproxy:haproxy:*:*:*:*:*:*:*:* Versions before 2.0.10 Vulnerable ·HAProxy
  • cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* Versions 18.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.04:*:*:*:*:*:*:* Versions 19.04 Vulnerable ·Canonical
  • cpe:2.3:o:canonical:ubuntu_linux:19.10:*:*:*:*:*:*:* Versions 19.10 Vulnerable ·Canonical
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian

Remediation

Red Hat 4 advisories

  • RHSA-2020:2265 Released 2020-05-26 · Red Hat rating Moderate
    rh-haproxy18-haproxy security, bug fix, and enhancement update
    • Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7) rh-haproxy18-haproxy-1.8.24-2.el7, rh-haproxy18-haproxy-syspaths-1.8.24-2.el7
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6) rh-haproxy18-haproxy-1.8.24-2.el7, rh-haproxy18-haproxy-syspaths-1.8.24-2.el7
    • Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7) rh-haproxy18-haproxy-1.8.24-2.el7, rh-haproxy18-haproxy-syspaths-1.8.24-2.el7
    • Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7) rh-haproxy18-haproxy-1.8.24-2.el7, rh-haproxy18-haproxy-syspaths-1.8.24-2.el7
  • RHSA-2020:1936 Released 2020-05-04 · Red Hat rating Moderate
    OpenShift Container Platform 4.4.3 haproxy security update
    • Red Hat OpenShift Container Platform 4.4 haproxy-2.0.13-3.el7, haproxy-2.0.13-3.el8, haproxy20-2.0.13-3.el7 +1
  • RHSA-2020:1725 Released 2020-04-28 · Red Hat rating Moderate
    haproxy security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 8) haproxy-1.8.23-3.el8
Show 1 more Red Hat advisories
  • RHSA-2020:1287 Released 2020-04-07 · Red Hat rating Critical
    OpenShift Container Platform 3.11 security update
    • Red Hat OpenShift Container Platform 3.11 haproxy-1.8.23-3.el7, haproxy18-1.8.23-3.el7

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux AppStream (v. 8)Fixed RHSA-2020:1725
Red Hat OpenShift Container Platform 3.11Fixed RHSA-2020:1287
Red Hat OpenShift Container Platform 4.4Fixed RHSA-2020:1936
Red Hat Software Collections for Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:2265
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.6)Fixed RHSA-2020:2265
Red Hat Software Collections for Red Hat Enterprise Linux Server EUS (v. 7.7)Fixed RHSA-2020:2265
Red Hat Software Collections for Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:2265
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2019-19330
  2. 2026-10-03 Alias added: GHSA-x4px-pm9c-vmjm

References

Advisory 5

Other 3

Sources

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