https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T14:03:36.956950+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/bdu:2025-05909 bdu:2025-05909 2026-10-03T14:03:37.174573+00:00 bdu:2025-05909 https://cve.radiocsirt.org/vuln/brew-mailcatcher-cve-2025-43857 BREW-mailcatcher-CVE-2025-43857 — net-imap rubygem vulnerable to possible DoS by memory exhaustion 2026-10-03T14:03:37.174611+00:00

Affected: Homebrew: mailcatcher

### Summary

There is a possibility for denial of service by memory exhaustion when `net-imap` reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response.

This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname).

### Details

The IMAP protocol allows "literal" strings to be sent in responses, prefixed with their size in curly braces (e.g. `{1234567890}\r\n`). When `Net::IMAP` receives a response containing a literal string, it calls `IO#read` with that size. When called with a size, `IO#read` immediately allocates memory to buffer the entire string before processing continues. The server does not need to send any more data. There is no limit on the size of literals that will be accepted.

### Fix #### Upgrade Users should upgrade to `net-imap` 0.5.7 or later. A configurable `max_response_size` limit has been added to `Net::IMAP`'s response reader. The `max_response_size` limit has also been backported to `net-imap` 0.2.5, 0.3.9, and 0.4.20.

To set a global value for `max_response_size`, users must upgrade to `net-imap` ~> 0.4.20, or > 0.5.7.

#### Configurat…

 https://cve.radiocsirt.org/vuln/certfr-2025-avi-0756 certfr-2025-avi-0756 — De multiples vulnérabilités ont été découvertes dans les produits VMware. Elles permettent à un attaquant de provoquer… 2026-10-03T14:03:37.174684+00:00 certfr-2025-avi-0756 https://cve.radiocsirt.org/vuln/euvd-2026-235445 EUVD-2026-235445 2026-10-03T14:03:37.174703+00:00 EUVD-2026-235445 https://cve.radiocsirt.org/vuln/fkie_cve-2025-43857 fkie_cve-2025-43857 2026-10-03T14:03:37.174715+00:00

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response. This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname). This issue has been patched in versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5.

 https://cve.radiocsirt.org/vuln/ghsa-j3g3-5qv5-52mj GHSA-j3g3-5qv5-52mj — net-imap rubygem vulnerable to possible DoS by memory exhaustion 2026-10-03T14:03:37.174742+00:00

Affected: RubyGems: net-imap

### Summary

There is a possibility for denial of service by memory exhaustion when `net-imap` reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response.

This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname).

### Details

The IMAP protocol allows "literal" strings to be sent in responses, prefixed with their size in curly braces (e.g. `{1234567890}\r\n`). When `Net::IMAP` receives a response containing a literal string, it calls `IO#read` with that size. When called with a size, `IO#read` immediately allocates memory to buffer the entire string before processing continues. The server does not need to send any more data. There is no limit on the size of literals that will be accepted.

### Fix #### Upgrade Users should upgrade to `net-imap` 0.5.7 or later. A configurable `max_response_size` limit has been added to `Net::IMAP`'s response reader. The `max_response_size` limit has also been backported to `net-imap` 0.2.5, 0.3.9, and 0.4.20.

To set a global value for `max_response_size`, users must upgrade to `net-imap` ~> 0.4.20, or > 0.5.7.

#### Configurat…

 https://cve.radiocsirt.org/vuln/msrc_cve-2025-43857 msrc_CVE-2025-43857 — net-imap rubygem vulnerable to possible DoS by memory exhaustion 2026-10-03T14:03:37.174793+00:00 msrc_CVE-2025-43857 https://cve.radiocsirt.org/vuln/oesa-2025-1640 OESA-2025-1640 — ruby security update 2026-10-03T14:03:37.174810+00:00

Affected: openEuler:22.03-LTS-SP3: ruby, openEuler:22.03-LTS-SP4: ruby, openEuler:24.03-LTS: ruby, openEuler:24.03-LTS-SP1: ruby, openEuler:20.03-LTS-SP4: ruby

Ruby is a fast and easy interpreted scripting language for object-oriented programming. It has many functions for processing text Files and perform system management tasks (such as Perl). Security Fix(es):

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response. This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname). This issue has been patched in versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5.(CVE-2025-43857)

 https://cve.radiocsirt.org/vuln/ubuntu-cve-2025-43857 UBUNTU-CVE-2025-43857 2026-10-03T14:03:37.174846+00:00

Affected: Ubuntu:Pro:14.04:LTS: jruby, Ubuntu:16.04:LTS: jruby, Ubuntu:Pro:18.04:LTS: ruby2.5, Ubuntu:18.04:LTS: jruby, Ubuntu:Pro:20.04:LTS: ruby2.7, Ubuntu:20.04:LTS: jruby, Ubuntu:22.04:LTS: ruby3.0, Ubuntu:24.04:LTS: jruby, Ubuntu:24.04:LTS: ruby3.2, Ubuntu:25.10: jruby and 3 more

Net::IMAP implements Internet Message Access Protocol (IMAP) client functionality in Ruby. Prior to versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5, there is a possibility for denial of service by memory exhaustion when net-imap reads server responses. At any time while the client is connected, a malicious server can send can send a "literal" byte count, which is automatically read by the client's receiver thread. The response reader immediately allocates memory for the number of bytes indicated by the server response. This should not be an issue when securely connecting to trusted IMAP servers that are well-behaved. It can affect insecure connections and buggy, untrusted, or compromised servers (for example, connecting to a user supplied hostname). This issue has been patched in versions 0.5.7, 0.4.20, 0.3.9, and 0.2.5.

 https://cve.radiocsirt.org/vuln/wid-sec-w-2025-0914 WID-SEC-W-2025-0914 — Ruby: Schwachstelle ermöglicht Denial of Service 2026-10-03T14:03:37.174889+00:00

Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Ruby ausnutzen, um einen Denial of Service Angriff durchzuführen.