CVE-2026-58227: Erlang OTP

TLS/DTLS denial of service via unbounded recursion on cross-signed peer certificate chain

CVSS 8.7 HighEPSS 0.0039 · 32nd percentile

Published by the CVE Program (CNA: EEF) at 27 Jul 2026, 14:39 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Erlang	OTP Package name: ssl pkg:otp/ssl?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%20https:%2F%2Fgithub.com%2Ferlang%2Fotp.git	affected 10.2 to before * otp Other versions: unaffected
Erlang	OTP Package name: erlang/otp https://github.com pkg:github/erlang/otp	affected 23.2 to before * otp affected addc42df113f8f15fc20e9dff45490b3ce0d3d6b to before * git Other versions: unaffected

Identifiers

CVE-2026-58227

CNA

EEF

Weakness (CWE)

CWE-674

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
8.7	High	4.0	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N	CNA (EEF)

CISA KEV Not listed.
EPSS 0.0039, the 32nd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 27 Jul 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/erlang/otp/security/advisories/GHSA-r5jr-mq46-vmhw vendor-advisoryrelated
cna.erlef.org/cves/CVE-2026-58227.html related
osv.dev/vulnerability/EEF-CVE-2026-58227 related
www.erlang.org/doc/system/versions.html#order-of-versions version-scheme
github.com/erlang/otp/commit/0307bff2c72b685c6bd952daaac6bd661c247d62 patch
github.com/erlang/otp/commit/241d43703989fec4b6bf637beaeb366d92dcc4c2 patch
github.com/erlang/otp/commit/7db64720177961e04545681480d691c4be81c54d patch

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.