CVE-2026-105236: Erlang OTP

TLS 1.2 session resumption in ssl crosses SNI virtual-host client-certificate trust boundaries

CVSS 6.3 MediumEPSS 0.0036 · 29th percentile

Published by the CVE Program (CNA: EEF) at 14 Oct 2026, 16:55 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: otp pkg:software-id/erlang.org/otp	affected 18.0 to before * otp Other versions: unaffected
Erlang	OTP Package name: ssl pkg:otp/ssl?repository_url=https:%2F%2Fgithub.com%2Ferlang%2Fotp&vcs_url=git%2Bhttps:%2F%2Fgithub.com%2Ferlang%2Fotp.git	affected 7.0 to before * otp Other versions: unaffected
Erlang	OTP Package name: erlang/otp https://github.com pkg:github/erlang/otp	affected 4fe38c4b8b2c8024afb60990e598ff823743fd54 to before * git Other versions: unaffected

Identifiers

CVE-2026-105236

CNA

EEF

Weakness (CWE)

CWE-295

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
6.3	Medium	4.0	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N	CNA (EEF)

CISA KEV Not listed.
EPSS 0.0036, the 29th 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 14 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

github.com/erlang/otp/security/advisories/GHSA-2g23-cgjh-34gq relatedvendor-advisory
cna.erlef.org/cves/CVE-2026-105236.html related
osv.dev/vulnerability/EEF-CVE-2026-105236 related
www.erlang.org/doc/system/versions.html#order-of-versions version-scheme
github.com/erlang/otp/commit/4fe38c4b8b2c8024afb60990e598ff823743fd54 related
github.com/erlang/otp/commit/0c20f3683b3c81fd30b46047195be9b3d2c69d76 patch
github.com/erlang/otp/commit/4d76adbf39d547a931048544df09c3c087e56618 patch
github.com/erlang/otp/commit/10ee925d0fee8413f1170cc21bfcf123c8d22454 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.