Patch Package OTP 29.0.2 Released

erlangforums · June 10, 2026, 10:54am

A new Erlang announcement has been posted:

Patch Package:           OTP 29.0.2
Git Tag:                 OTP-29.0.2
Date:                    2026-06-10
Trouble Report Id:       OTP-20057, OTP-20149, OTP-20150, OTP-20151,
                         OTP-20153, OTP-20154, OTP-20155, OTP-20156,
                         OTP-20160, OTP-20161, OTP-20162, OTP-20163,
                         OTP-20165, OTP-20166, OTP-20170, OTP-20172,
                         OTP-20174, OTP-20178, OTP-20181
Seq num:                 CVE-2026-48855, CVE-2026-48856,
                         CVE-2026-48858, CVE-2026-48859,
                         CVE-2026-48860, CVE-2026-49759,
                         CVE-2026-49760, GH-11104, GH-11105, GH-11152,
                         GH-SA-24cv-hwgr-37fq, GH-SA-3w6p-vwhf-wvp4,
                         GH-SA-6f4f-chj5-5g97, GH-SA-gp7x-mfv6-52cv,
                         GH-SA-m75x-4vwg-ggjh, GH-SA-pv7g-pjrq-x2fh,
                         GH-SA-xcxj-5pg2-v72j, PR-11141, PR-11145,
                         PR-11146, PR-11148, PR-11154, PR-11157,
                         PR-11168, PR-11181, PR-11186, PR-11192,
                         PR-11193, PR-11195, PR-11199, PR-11205,
                         PR-11212, PR-1234, PR-27384
System:                  OTP
Release:                 29
Application:             dialyzer-6.0.1, diameter-2.7.1,
                         erl_interface-5.8.1, erts-17.0.2, ftp-1.2.6,
                         inets-9.7.1, kernel-11.0.2, mnesia-4.26.1,
                         public_key-1.21.2, ssh-6.0.1, ssl-11.7.2,
                         stdlib-8.0.1, tools-4.2.1
Predecessor:             OTP 29.0.1
Check out the git tag OTP-29.0.2, and build a full OTP system including
documentation. Apply one or more applications from this build as patches to your
installation using the ‘otp_patch_apply’ tool. For information on install
requirements, see descriptions for each application version below.

dialyzer-6.0.1

The dialyzer-6.0.1 application can be applied independently of other
applications on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fix native record bugs in Dialyzer

Own Id: OTP-20178
Related Id(s): PR-11199

Full runtime dependencies of dialyzer-6.0.1

compiler-10.0, erts-12.0, kernel-8.0, stdlib-5.0, syntax_tools-2.0

diameter-2.7.1

The diameter-2.7.1 application can be applied independently of other
applications on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fixed return value documentation of
diameter:service_info(SvcName, statistics)

Own Id: OTP-20150
Related Id(s): GH-11105, PR-11146

Full runtime dependencies of diameter-2.7.1

erts-10.0, kernel-3.2, ssl-9.0, stdlib-5.0

erl_interface-5.8.1

The erl_interface-5.8.1 application can be applied independently of other
applications on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fixed stack overflow in ei_s_print_term for very big integer terms (> 2000
hexadecimal digits long).

Own Id: OTP-20160
Related Id(s): GH-SA-xcxj-5pg2-v72j, PR-11193, CVE-2026-49760

erts-17.0.2

The erts-17.0.2 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

A buffer overflow error when parsing SCTP ERROR or ABORT chunks has been
fixed.

This could lead to stack corruption and VM crash, but ultimately with hard
work by an attacker be refined into maybe even remote code execution.

Own Id: OTP-20165
Related Id(s): GH-SA-6f4f-chj5-5g97, PR-1234, CVE-2026-49759

Full runtime dependencies of erts-17.0.2

kernel-9.0, sasl-3.3, stdlib-4.1

ftp-1.2.6

The ftp-1.2.6 application can be applied independently of other applications on
a full OTP 29 installation.

Fixed Bugs and Malfunctions

FTP client default connections that use the so called passive mode of FTP
fails to properly validating the response IP of the server, hence a malicious
or compromised FTP server could redirect the data connection to an arbitrary
host, enabling s server-side request forgery (SSRF) and FTP bounce attacks.

Own Id: OTP-20166
Related Id(s): GH-SA-24cv-hwgr-37fq, PR-11186, CVE-2026-48858

Full runtime dependencies of ftp-1.2.6

erts-7.0, kernel-6.0, runtime_tools-1.15.1, ssl-10.2, stdlib-3.5

inets-9.7.1

The inets-9.7.1 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

The HTTP client (httpc) now removes Authorization, Proxy-Authorization,
Cookie, Referer, and Origin headers when following a redirect to a different
host or port. Previously these headers were forwarded verbatim, potentially
leaking credentials to unintended targets.

This follows the requirements of RFC 9110 §15.4.

Own Id: OTP-20155
Related Id(s): GH-SA-m75x-4vwg-ggjh, PR-11212, CVE-2026-48856

Full runtime dependencies of inets-9.7.1

erts-14.0, kernel-9.0, mnesia-4.12, public_key-1.13, runtime_tools-1.8.14,
ssl-9.0, stdlib-5.0, stdlib-6.0

kernel-11.0.2

The kernel-11.0.2 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

gen_tcp_socket accept should explicitly inherit the same options as plain
gen_tcp.

Own Id: OTP-20057

Full runtime dependencies of kernel-11.0.2

crypto-5.8, erts-17.0, sasl-3.0, stdlib-8.0

mnesia-4.26.1

The mnesia-4.26.1 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fixed docs of mnesia:write/3 to clarify when a transaction can terminate.

Own Id: OTP-20149
Related Id(s): GH-11104, PR-11145

Full runtime dependencies of mnesia-4.26.1

erts-9.0, kernel-5.3, stdlib-5.0

public_key-1.21.2

The public_key-1.21.2 application can be applied independently of other
applications on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Add missing macro reference for legacy algorithms md5 and sha224. This mainly
improves error handling.

Own Id: OTP-20172
Related Id(s): PR-11195

Full runtime dependencies of public_key-1.21.2

asn1-5.0, crypto-5.8, erts-13.0, kernel-8.0, stdlib-4.0

ssh-6.0.1

The ssh-6.0.1 application can be applied independently of other applications on
a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fixed a timing-based username enumeration vulnerability during password
authentication with the user_passwords option. A dummy PBKDF2 computation is
now performed for invalid usernames to match the response time of valid ones.

Own Id: OTP-20153
Related Id(s): GH-SA-3w6p-vwhf-wvp4, PR-11157, CVE-2026-48859

Fixed SSH_FXP_READLINK handler in ssh_sftpd to strip the backend root prefix
from symlink targets before returning them to the client, preventing
disclosure of the server’s absolute filesystem path when the root option is
configured.

Own Id: OTP-20162
Related Id(s): GH-SA-pv7g-pjrq-x2fh, PR-11192, CVE-2026-48855

Fixed a race condition where SSH keep-alive responses could consume pending
channel open requests, causing channel setup to fail silently.

Own Id: OTP-20181
Related Id(s): PR-11205

Full runtime dependencies of ssh-6.0.1

crypto-5.7, erts-14.0, kernel-10.3, public_key-1.6.1, runtime_tools-1.15.1,
stdlib-8.0

ssl-11.7.2

Note! The ssl-11.7.2 application cannot be applied independently of other
applications on an arbitrary OTP 29 installation.
   On a full OTP 29 installation, also the following runtime
   dependency has to be satisfied:
   -- public_key-1.21.1 (first satisfied in OTP 29.0.1)
Fixed Bugs and Malfunctions

Fix miscellanies issues that could cause unnecessary memory consumption and in
some less common scenarios or configurations cause connection failures.

Own Id: OTP-20154
Related Id(s): PR-11148

Erlang distribution over TLS run with the kernel ‘check_ip’ flag now properly
enforce connecting nodes to be on the same LAN.

Own Id: OTP-20156
Related Id(s): GH-SA-gp7x-mfv6-52cv, PR-11181, CVE-2026-48860

Enhance error message, by fixing typo of atom in new error message related to
`public_key` CVE-2026-42790 solution.

Own Id: OTP-20161
Related Id(s): PR-11148

Corrected SNI handling for TLS-1.3 only server, could cause connection
failures if supported signature algorithms where changed by SNI option update.

Own Id: OTP-20174
Related Id(s): PR-27384

Full runtime dependencies of ssl-11.7.2

crypto-5.8, erts-16.0, inets-5.10.7, kernel-10.3, public_key-1.21.1,
runtime_tools-1.15.1, stdlib-7.0

stdlib-8.0.1

The stdlib-8.0.1 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Fix a bug where a tuple record operation within a native record anonymous
update can crash.

Own Id: OTP-20151
Related Id(s): PR-11141

Fixed some bugs in io_lib:bformat/2 and native record printing.

Own Id: OTP-20170
Related Id(s): PR-11154

Full runtime dependencies of stdlib-8.0.1

compiler-5.0, crypto-4.5, erts-16.0.3, kernel-11.0, sasl-3.0,
syntax_tools-3.2.1

tools-4.2.1

The tools-4.2.1 application can be applied independently of other applications
on a full OTP 29 installation.

Fixed Bugs and Malfunctions

Xref could crash instead of returning an appropriate error tuple when asked to
open a BEAM file without debug information but with a moduledoc(false)
attribute.

Own Id: OTP-20163
Related Id(s): GH-11152, PR-11168

Full runtime dependencies of tools-4.2.1

compiler-8.5, crypto-5.9, erts-15.0, kernel-10.0, public_key-1.21,
runtime_tools-2.1, stdlib-6.0

Thanks to

John Downey, Jonatan Männchen

Original announcement: