CVE-2025-26618 — Erlang OTP vulnerability

Vendor	Product	Version range	Fixed in
debian	erlang	< erlang 1:25.2.3+dfsg-1+deb12u1 (bookworm)	erlang 1:25.2.3+dfsg-1+deb12u1 (bookworm)
erlang	otp	< OTP-25.3.2.18	OTP-25.3.2.18
erlang	otp	—	—
erlang	otp	—	—
msrc	azl3_erlang_26.2.5.6-1_on_azure_linux_3.0	—	—
msrc	azl3_erlang_26.2.5.9-1_on_azure_linux_3.0	—	—
msrc	cbl2_erlang_25.2-3_on_cbl_mariner_2.0	—	—

Ubuntu

Erlang vulnerability

vendor_ubuntu·2025-03-03

CVE-2025-26618 Erlang vulnerability Title: Erlang vulnerability Summary: Erlang could be made to consume resources if it received specially crafted network traffic. It was discovered that Erlang incorrectly handled SFTP packet sizes. A remote attacker could possibly use this issue to cause Erlang to consume resources, resulting in a denial of service. Instructions: In general, a standard system update will make all the necessary changes.

Red Hat

otp: erlang: SSH SFTP packet size not verified properly in Erlang OTP

vendor_redhat·2025-02-20·CVSS 7.0

CVE-2025-26618 [HIGH] CWE-789 otp: erlang: SSH SFTP packet size not verified properly in Erlang OTP otp: erlang: SSH SFTP packet size not verified properly in Erlang OTP Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability. OTP is a set of Erlang libraries, which consists of the Erlang runtime system, a number of ready-to-use components mainly written in Erlang. Packet size is not verified properly for SFTP packets. As a result when multiple SSH packets (conforming to max SSH packet size) are received by ssh, they might be combined into an SFTP packet which will exceed the max allowed packet size and potentially cause large amount of memory to be allocated. Note that situation described above can only happen for successfully authenticated users after completing the SSH handshake. This issue has

Microsoft

SSH SFTP packet size not verified properly in Erlang OTP

vendor_msrc·2025-02-11·CVSS 7.0

CVE-2025-26618 [HIGH] CWE-789 SSH SFTP packet size not verified properly in Erlang OTP SSH SFTP packet size not verified properly in Erlang OTP FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this. Mariner: Mariner GitHub_M: GitHub_M Customer Action Required: Yes Remediation: CBL-Mariner Releases Reference: https:

Debian

CVE-2025-26618: erlang - Erlang is a programming language and runtime system for building massively scala...

vendor_debian·2025·CVSS 7.0

CVE-2025-26618 [HIGH] CVE-2025-26618: erlang - Erlang is a programming language and runtime system for building massively scala... Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability. OTP is a set of Erlang libraries, which consists of the Erlang runtime system, a number of ready-to-use components mainly written in Erlang. Packet size is not verified properly for SFTP packets. As a result when multiple SSH packets (conforming to max SSH packet size) are received by ssh, they might be combined into an SFTP packet which will exceed the max allowed packet size and potentially cause large amount of memory to be allocated. Note that situation described above can only happen for successfully authenticated users after completing the SSH handshake. This issue has been patched in OTP versions 27.2.4, 26.2.5.9, and 25.3.2.18. There are

OSV

CVE-2025-26618: Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability

osv·2025-02-20·CVSS 7.0

CVE-2025-26618 [HIGH] CVE-2025-26618: Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability. OTP is a set of Erlang libraries, which consists of the Erlang runtime system, a number of ready-to-use components mainly written in Erlang. Packet size is not verified properly for SFTP packets. As a result when multiple SSH packets (conforming to max SSH packet size) are received by ssh, they might be combined into an SFTP packet which will exceed the max allowed packet size and potentially cause large amount of memory to be allocated. Note that situation described above can only happen for successfully authenticated users after completing the SSH handshake. This issue has been patched in OTP versions 27.2.4, 26.2.5.9, and 25.3.2.18. There are

CVE-2025-26618: Erlang is a programming language and runtime system for building massively scalable soft real-time systems with requirements on high availability. OTP is a set…

Affected

CVSS provenance