CVE-2025-48039
published 2025-09-11CVE-2025-48039: Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exposure…
PriorityP431medium5.3CVSS 4.0
AVNACLATNPRLUINVCNVINVALSCNSINSANEXCRXIRXARXMAVXMACXMATXMPRXMUIXMVCXMVIXMVAXMSCXMSIXMSAXSXAUXRXVXREXUX
EPSS
0.36%
27.8th percentile
Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exposure. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl.
This issue affects OTP from OTP 17.0 until OTP 28.0.3, OTP 27.3.4.3 and 26.2.5.15 corresponding to ssh from 3.0.1 until 5.3.3, 5.2.11.3 and 5.1.4.12.
Affected
7 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | erlang | < erlang 1:23.2.6+dfsg-1+deb11u3 (bullseye) | erlang 1:23.2.6+dfsg-1+deb11u3 (bullseye) |
| erlang | otp | >= 07b8f441ca711f9812fad9e9115bab3c3aa92f79 < * | * |
| erlang | otp | >= 17.0 < * | * |
| erlang | otp | >= 3.0.1 < * | * |
| msrc | azl3_erlang_26.2.5.13-1_on_azure_linux_3.0 | — | — |
| msrc | cbl2_erlang_25.3.2.21-2_on_cbl_mariner_2.0 | — | — |
| msrc | cbl2_erlang_25.3.2.21-4_on_cbl_mariner_2.0 | — | — |
CVSS provenance
nvdv4.05.3MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/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
osv5.3MEDIUM
vendor_debian5.3MEDIUM
vendor_redhat5.3MEDIUM
vendor_msrc4.3MEDIUM
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OSV
CVE-2025-48039: Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exp
osv·2025-09-11·CVSS 5.3
CVE-2025-48039 [MEDIUM] CVE-2025-48039: Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exp
Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exposure. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl. This issue affects OTP form OTP 17.0 until OTP 28.0.3, OTP 27.3.4.3 and 26.2.5.15 corresponding to ssh from 3.0.1 until 5.3.3, 5.2.11.3 and 5.1.4.12.
Ubuntu
Erlang vulnerabilities
vendor_ubuntu·2025-10-21
CVE-2025-48041 Erlang vulnerabilities
Title: Erlang vulnerabilities
Summary: Several security issues were fixed in Erlang.
It was discovered that Erlang incorrectly handled resource allocation and
consumption in the SFTP SSH module. An attacker could possibly use this
issue cause Erlang to consume excessive resources, leading to a denial of
service.
Instructions: After a standard system update you need to reboot your computer to make all
the necessary changes.
Red Hat
erlang: Erlang Excessive Use of System Resources
vendor_redhat·2025-09-11·CVSS 5.3
CVE-2025-48039 [MEDIUM] CWE-770 erlang: Erlang Excessive Use of System Resources
erlang: Erlang Excessive Use of System Resources
Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exposure. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl.
This issue affects OTP form OTP 17.0 until OTP 28.0.3, OTP 27.3.4.3 and 26.2.5.15 corresponding to ssh from 3.0.1 until 5.3.3, 5.2.11.3 and 5.1.4.12.
A resource exhaustion flaw has been discovered in the Erlang OTP and ssh module. Accessing unverified paths from authenticated SFTP users can lead to excessive CPU and memory usage, potentially affecting system stability.
Mitigation: Users unable to upgrade may disable Erlang SFTP access to mitigate the attack vector or limit the number of max_sessions allowed
Microsoft
Unverified Paths can Cause Excessive Use of System Resources
vendor_msrc·2025-09-09·CVSS 4.3
CVE-2025-48039 [MEDIUM] CWE-770 Unverified Paths can Cause Excessive Use of System Resources
Unverified Paths can Cause Excessive Use of System Resources
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
EEF: EEF
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://lear
Debian
CVE-2025-48039: erlang - Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP...
vendor_debian·2025·CVSS 5.3
CVE-2025-48039 [MEDIUM] CVE-2025-48039: erlang - Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP...
Allocation of Resources Without Limits or Throttling vulnerability in Erlang OTP ssh (ssh_sftp modules) allows Excessive Allocation, Resource Leak Exposure. This vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl. This issue affects OTP form OTP 17.0 until OTP 28.0.3, OTP 27.3.4.3 and 26.2.5.15 corresponding to ssh from 3.0.1 until 5.3.3, 5.2.11.3 and 5.1.4.12.
Scope: local
bookworm: open
bullseye: resolved (fixed in 1:23.2.6+dfsg-1+deb11u3)
forky: resolved (fixed in 1:27.3.4.3+dfsg-1)
sid: resolved (fixed in 1:27.3.4.3+dfsg-1)
trixie: resolved (fixed in 1:27.3.4.1+dfsg-1+deb13u1)
No detection rules found.
No public exploits indexed.
https://cna.erlef.org/cves/CVE-2025-48039.htmlhttps://github.com/erlang/otp/commit/043ee3c943e2977c1acdd740ad13992fd60b6bf0https://github.com/erlang/otp/commit/c242e6458967e9514bea351814151695807a54achttps://github.com/erlang/otp/pull/10155https://github.com/erlang/otp/security/advisories/GHSA-rr5p-6856-j7h8https://osv.dev/vulnerability/EEF-CVE-2025-48039https://www.erlang.org/doc/system/versions.html#order-of-versions
2025-09-11
Published