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Fencer Vulns
critical 9.8

CVE-2022-37026 json

In Erlang/OTP before 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2, there is a Client Authentication Bypass in certain client-cer…

published 2022-09-21 4 y ago modified 2026-06-17 4 mo ago also EUVD-2022-39680

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 74%
public exploits
0
none known

Summary

In Erlang/OTP before 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2, there is a Client Authentication Bypass in certain client-certification situations for SSL, TLS, and DTLS.

Patch / fix

  • erlang erlang/otp 23.3.4.15, 24.3.4.2, 25.0.2
  • erlang Debian 14, Debian 13, Debian 12 1:24.3.4.5+dfsg-1

debian advisories DEBIAN-CVE-2022-37026

  • erlang Ubuntu 20.04 LTS 1:22.2.7+dfsg-1ubuntu0.2
  • erlang Ubuntu 22.04 LTS 1:24.2.1+dfsg-1ubuntu0.1

ubuntu advisories UBUNTU-CVE-2022-37026

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • erlang openstack 16.2 23.3.4.18-1.el8ost
  • erlang-ssl openstack 16.2 23.3.4.18-1.el8ost
  • erlang-asn1 openstack 16.2 23.3.4.18-1.el8ost
  • erlang-erts openstack 16.2 23.3.4.18-1.el8ost
  • erlang-hipe openstack 16.2 23.3.4.18-1.el8ost
  • erlang-sasl openstack 16.2 23.3.4.18-1.el8ost
  • erlang-snmp openstack 16.2 23.3.4.18-1.el8ost
  • erlang-eldap openstack 16.2 23.3.4.18-1.el8ost

red hat advisories RHSA-2022:8857

  • erlang SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Module for Server Applications 15 SP5 +6 more 23.3.4.19-150300.3.11.1
  • erlang SLES for SAP 15 SP3, SLES 15 SP3-LTSS, SLE Module for Server Applications 15 SP5 +8 more 22.3-150300.3.8.1
  • erlang SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +6 more 22.2.7-150200.3.3.1
  • erlang SLE Module for Server Applications 15 SP4, SLE Module for Server Applications 15 SP3, openSUSE Leap 15.4 +1 more 22.3-150300.3.3.1
  • erlang SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLE High Performance Computing 15 SP2-LTSS 22.2.7-150200.3.8.1

suse advisories SUSE-SU-2023:4109-1SUSE-SU-2023:3409-1SUSE-SU-2023:3401-1SUSE-SU-2022:4222-1SUSE-SU-2022:4215-1

  • erlang27 openSUSE Tumbleweed 27.1.3-1.1
  • erlang openSUSE Tumbleweed 25.1.1-1.1

opensuse advisories openSUSE-SU-2025:15740-1openSUSE-SU-2024:12416-1

  • erlang Alpine 3.16 24.3.4.6-r0
  • erlang Alpine 3.21, Alpine 3.20, Alpine 3.19 +2 more 25.0.3-r0
  • erlang26 Alpine 3.22 25.0.3-r0

alpine advisories ALPINE-CVE-2022-37026

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2022-37026 updated cvss 9.4

erlang/otp: Client Authentication Bypass

  • Red Hat OpenStack Platform 13 (Queens) erlang, erlang-ic, erlang-ftp, erlang-ose, erlang-ssh, erlang-ssl, +36 more Red Hat OpenStack Platform 16.1 erlang-ssl, erlang-asn1, erlang-erts, erlang-hipe, erlang-sasl, erlang-snmp, +15 more
    affected: no fix planned “Will not fix”
  • Red Hat OpenStack Platform 16.2 erlang 23.3.4.18-1.el8ost, erlang-ssl 23.3.4.18-1.el8ost, erlang-asn1 23.3.4.18-1.el8ost, erlang-erts 23.3.4.18-1.el8ost, erlang-hipe 23.3.4.18-1.el8ost, erlang-sasl 23.3.4.18-1.el8ost, +15 more
    fixed: vendor fix RHSA-2022:8857
  • Red Hat OpenStack Platform 17.0 erlang-ssl, erlang-asn1, erlang-erts, erlang-sasl, erlang-snmp, erlang-eldap, +13 more
    not affected: vulnerable code 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
none
Automatable
no
Technical impact
partial
Assessed
17 mo ago

Exploit prediction

1.49% chance of exploitation in the next 30 days, higher than 74% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.