CVE-2026-58227 Details
Description
The Erlang/OTP ssl application does not detect cycles when reconstructing an incomplete peer certificate chain during a TLS or DTLS handshake. In ssl_certificate:handle_incomplete_chain/5, the received chain is passed to ssl_certificate:build_certificate_chain/5, which walks issuer relationships via ssl_certificate:do_certificate_chain/7 with no cycle detection and no depth limit. When the peer supplies two mutually cross-signed certificates in unordered form (A issues B, B issues A), the issuer lookup alternates between the two certificates and the pair of functions recurses indefinitely, growing the call stack and chain accumulator without bound. An unauthenticated remote attacker can send a crafted certificate chain in a TLS or DTLS Certificate handshake message to exhaust available memory and crash the BEAM node. Only a TCP connection and a partial handshake are required; no authentication or completed handshake is needed, and both TLS/DTLS servers and clients are affected when processing peer certificate messages. This issue affects OTP from OTP 23.2 before OTP 29.0.4, OTP 28.5.0.4 and OTP 27.3.4.15, corresponding to ssl from 10.2 before 11.7.4, 11.6.0.4 and 11.2.12.11.
A denial-of-service vulnerability has been identified in the Erlang/OTP ssl application, affecting versions 23.2 prior to 29.0.4, 28.5.0.4, and 27.3.4.15. The issue arises during TLS or DTLS handshakes when the application fails to detect cycles in an incomplete peer certificate chain. This flaw allows an unauthenticated remote attacker to send a crafted certificate chain that triggers infinite recursion between two cross-signed certificates, exhausting memory and crashing the BEAM node. The vulnerability exists in both TLS and DTLS servers and clients, requiring only a TCP connection and a partial handshake.
Users can upgrade to Erlang/OTP versions 29.0.4, 28.5.0.4, or 27.3.4.15 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jul 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://cna.erlef.org/cves/CVE-2026-58227.html | EEF | PatchThird Party Advisory |
| https://github.com/erlang/otp/commit/0307bff2c72b685c6bd952daaac6bd661c247d62 | EEF | Patch |
| https://github.com/erlang/otp/commit/241d43703989fec4b6bf637beaeb366d92dcc4c2 | EEF | Patch |
| https://github.com/erlang/otp/commit/7db64720177961e04545681480d691c4be81c54d | EEF | Patch |
| https://github.com/erlang/otp/security/advisories/GHSA-r5jr-mq46-vmhw | EEF | Vendor Advisory |
| https://osv.dev/vulnerability/EEF-CVE-2026-58227 | EEF | PatchThird Party Advisory |
| https://www.erlang.org/doc/system/versions.html#order-of-versions | EEF | Release Notes |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-674 | Uncontrolled Recursion | EEF |
Affected Products
| Product | Versions |
|---|---|
| erlang erlang/otp | >= 23.2, < 27.3.4.15 >= 28.0, < 28.5.0.4 >= 29.0, < 29.0.4 |
CPE
Remediation
| |
| erlang erlang/ssl | >= 10.2, < 11.2.12.11 >= 11.3, < 11.6.0.4 >= 11.7, < 11.7.4 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Aug 10, 2026 | Initial Analysis | [email protected] |
| Jul 27, 2026 | CVE Modified | CISA-ADP |
| Jul 27, 2026 | New CVE Received | EEF |