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National Vulnerability Database

National Vulnerability Database

NVD

National Vulnerability Database
  1. Vulnerabilities

CVE-2026-48860 Detail

Description

Reliance on IP Address for Authentication vulnerability in Erlang/OTP ssl (inet_tls_dist module) allows unauthenticated bypass of the distribution-over-TLS LAN allowlist. The inet_tls_dist:check_ip/1 function, which enforces a LAN allowlist for Erlang distribution over TLS, calls inet:sockname/1 instead of inet:peername/1 to obtain the peer's IP address. Because inet:sockname/1 returns the local socket address, both the local IP and the supposed peer IP resolve to the same value, causing the subnet mask comparison to always succeed regardless of the actual remote address. Any holder of a CA-signed TLS certificate can therefore bypass the LAN restriction and gain full Erlang distribution access to the node, including rpc:call/4 and code:load_binary/3. This vulnerability is associated with program file lib/ssl/src/inet_tls_dist.erl. This issue affects OTP from OTP 26.0 before 29.0.2, 28.5.0.2 and 27.3.4.13 corresponding to ssl from 11.0 before 11.7.2, 11.6.0.2 and 11.2.12.9.


Metrics

 
NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

Nist CVSS score does not match with CNA score
CNA:  EEF
CVSS-B 7.5 HIGH
Vector:  CVSS:4.0/AV:A/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

References to Advisories, Solutions, and Tools

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URL Source(s) Tag(s)
https://cna.erlef.org/cves/CVE-2026-48860.html EEF
https://github.com/erlang/otp/commit/0209a6df65d605552b378273027b3968b35f26b4 EEF
https://github.com/erlang/otp/security/advisories/GHSA-gp7x-mfv6-52cv EEF
https://osv.dev/vulnerability/EEF-CVE-2026-48860 EEF
https://www.erlang.org/doc/system/versions.html#order-of-versions EEF

Weakness Enumeration

CWE-ID CWE Name Source
CWE-863 Incorrect Authorization EEF  
CWE-1025 Comparison Using Wrong Factors EEF  

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-48860
NVD Published Date:
06/10/2026
NVD Last Modified:
06/10/2026
Source:
EEF