Dashboard / CVE-2026-48860

CVE-2026-48860

HIGH
MEDIUM Priority: 0.02 BB Relevance: 40/100
Published: 2026-06-10 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Adjacent No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Adjacent
AC: High
PR: Low
UI: None
S: X
AT: Present
VC: High
VI: High
VA: High

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 OTP 27.3.4.13, OTP 28.5.0.2, and OTP 29.0.2, corresponding to ssl from 11.0 before 11.2.12.9, 11.6.0.2, and 11.7.2.

Weakness Classification (2)

Affected Software (2)

VendorProductVersion
erlang erlang\/otp 26.0 – 27.3.4.13
erlang erlang\/ssl 11.0 – 11.2.12.9

References & Advisories (6)

Bug Bounty Relevance

40 / 100
✓ No user interaction

CVSS Score

7.5 / 10.0 v4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS — Exploitation Probability

0.21%
Raw Score 0.002100
Percentile 11.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00210
2026-10-28
0.00210

Intelligence Sources

nvd ref →

External Links