Security readout for executives and security teams
Plain-English summary
This is a critical authentication bypass in Erlang/OTP SSL, TLS, and DTLS handling. In some client-certificate authentication situations, an unauthorized client may be accepted as trusted. Organizations using Erlang-based services for mutual TLS should treat this as urgent, especially for internet-facing or partner-facing systems.
Executive priority
Make this a high-priority remediation item for any Erlang-backed service using client certificates. The business risk is unauthorized access through a trust boundary, with potentially severe data and service impact if exposed systems depend on mutual TLS.
Technical view
CVE-2022-37026 affects Erlang/OTP before 23.3.4.15, 24.x before 24.3.4.2, and 25.x before 25.0.2. The issue is a client authentication bypass in certain SSL/TLS/DTLS client-certificate cases. The CVSS 3.1 score is 9.8, with network attack vector and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where Erlang/OTP SSL, TLS, or DTLS is used with client certificates for authentication. Risk is higher for externally reachable services, APIs, gateways, brokers, or internal control planes that rely on mutual TLS trust decisions.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The CVSS vector indicates remote, unauthenticated exploitability under affected configurations, but the source bundle only states the bypass occurs in certain client-certificate situations.
Researcher notes
Evidence is sufficient for affected version boundaries and vulnerability class, but limited on the exact certificate-validation edge case. Avoid broad product assumptions beyond Erlang/OTP SSL/TLS/DTLS users. No source in the bundle confirms exploitation in the wild.
Mitigation direction
- Upgrade Erlang/OTP to 23.3.4.15, 24.3.4.2, 25.0.2, or later.
- Apply distribution security updates where Erlang is managed by the operating system.
- Prioritize systems using SSL/TLS/DTLS client-certificate authentication.
- Check Erlang/OTP and OS vendor advisories for environment-specific guidance.
- Reduce exposure of affected mutual TLS endpoints until fixed.
Validation and detection
- Inventory Erlang/OTP versions across applications, containers, and hosts.
- Confirm deployed versions meet or exceed the fixed release levels.
- Identify services using Erlang/OTP SSL, TLS, or DTLS client certificates.
- Verify operating system packages include the relevant security update.
- Review access logs for unexpected successful client-certificate authentications.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2022-37026 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H3.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
9.8CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/erlang/otp/compare/OTP-23.3.4.14...OTP-23.3.4.15CVE reference
- https://erlangforums.com/c/erlang-news-announcements/91CVE reference
- https://erlangforums.com/t/otp-25-1-released/1854CVE reference
- [debian-lts-announce] 20230711 [SECURITY] [DLA 3491-1] erlang security updateCVE reference · mailing-list
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.