UBUNTU-CVE-2026-48860

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Source
https://ubuntu.com/security/CVE-2026-48860
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48860.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2026-48860
Upstream
Downstream
Related
Published
2026-06-10T16:17:00Z
Modified
2026-10-08T19:47:10Z
Severity
  • 7.5 (High) CVSS_V4 - 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 CVSS Calculator
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVSS Calculator
  • Ubuntu - medium
Summary
[none]
Details

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.

References

Affected packages

Ubuntu:25.10 / erlang

Package

Name
erlang
Purl
pkg:deb/ubuntu/erlang?arch=source&distro=questing

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1:27.*
1:27.3+dfsg-1ubuntu1
1:27.3+dfsg-1ubuntu1.1
1:27.3.4.1+dfsg-1
1:27.3.4.1+dfsg-1build1
1:27.3.4.1+dfsg-1ubuntu0.1

Ecosystem specific 

{
    "binaries":  [
        {
            "binary_name":  "erlang",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-asn1",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-base",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-common-test",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-crypto",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-debugger",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-dialyzer",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-diameter",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-edoc",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-eldap",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-et",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-eunit",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-examples",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-ftp",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-inets",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-jinterface",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-megaco",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-mnesia",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-mode",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-nox",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-observer",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-odbc",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-os-mon",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-parsetools",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-public-key",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-reltool",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-runtime-tools",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-snmp",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-src",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-ssh",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-ssl",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-syntax-tools",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-tftp",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-tools",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-wx",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-x11",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        },
        {
            "binary_name":  "erlang-xmerl",
            "binary_version":  "1:27.3.4.1+dfsg-1ubuntu0.1"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48860.json"

Ubuntu:26.04:LTS / erlang

Package

Name
erlang
Purl
pkg:deb/ubuntu/erlang?arch=source&distro=resolute

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1:27.3.4.6+dfsg-1ubuntu0.2

Affected versions

1:27.*
1:27.3.4.1+dfsg-1build1
1:27.3.4.3+dfsg-1
1:27.3.4.4+dfsg-1
1:27.3.4.6+dfsg-1
1:27.3.4.6+dfsg-1ubuntu0.1

Ecosystem specific 

{
    "availability":  "No subscription required",
    "binaries":  [
        {
            "binary_name":  "erlang",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-asn1",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-base",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-common-test",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-crypto",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-debugger",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-dialyzer",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-diameter",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-edoc",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-eldap",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-et",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-eunit",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-examples",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-ftp",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-inets",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-jinterface",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-megaco",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-mnesia",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-mode",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-nox",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-observer",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-odbc",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-os-mon",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-parsetools",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-public-key",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-reltool",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-runtime-tools",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-snmp",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-src",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-ssh",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-ssl",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-syntax-tools",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-tftp",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-tools",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-wx",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-x11",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        },
        {
            "binary_name":  "erlang-xmerl",
            "binary_version":  "1:27.3.4.6+dfsg-1ubuntu0.2"
        }
    ]
}

Database specific

source 
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48860.json"