EUVD-2026-40422

A malicious or compromised server can make a DCMTK client using bit-preserving C-GET storage mode write files outside the chosen output directory, using both relative ../ paths and absolute paths...

CVE-2026-58051

A flaw in libssh2 allows a malicious SSH server to send a malformed public key response, triggering an invalid memory cleanup. This can cause the connecting client application to crash or leak information. Mitigation To mitigate this issue, ensure your applications connect only to trusted and...

UBUNTU-CVE-2026-58051

libssh2 through 1.11.1 grows its publickey list with SSH2REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2publickeylistfree operating on an uninitialized entry. A malicious SSH server offering the publickey...

CVE-2026-58051 libssh2 - Free of Uninitialized Pointer in publickey List Cleanup

libssh2 through 1.11.1 grows its publickey list with SSH2REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2publickeylistfree operating on an uninitialized entry. A malicious SSH server offering the publickey...

CVE-2026-58051

libssh2 through 1.11.1 grows its publickey list with SSH2REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2publickeylistfree operating on an uninitialized entry. A malicious SSH server offering the publickey...

CVE-2026-58051

CVE-2026-58051 affects libssh2 up to version 1.11.1. The vulnerability arises because libssh2 grows its publickey list using SSH2_REALLOC but does not zero-initialize the newly allocated entries before parsing populates them. If parsing fails and the code path cleans up, libssh2_publickey_list_fr...

PT-2026-53083

Name of the Vulnerable Software and Affected Versions libssh2 versions prior to 1.11.2 Description An issue exists in the public key parsing process where the software expands its public key list using SSH2 REALLOC but fails to zero-initialize new entries before they are populated. If a parse...

CVE-2026-7531

CVE-2026-7531 describes a use-after-free in the handling of PQC hybrid key-shares for TLS 1.3. The issue occurs when a malicious server sends a truncated PQC hybrid KeyShare, which can trigger the error cleanup path to operate on freed memory. Documents consistently label this as an incomplete fi...

CVE-2026-54030

CVE-2026-54030 affects LibreChat (MCP OAuth flow). Before v0.8.5, the OAuth Protected Resource metadata’s resource parameter is not validated against the MCP server URL, enabling a malicious MCP server to steal access tokens intended for a legitimate server. Affected version range includes pre-0....

CVE-2026-42387

PowerDNS Recursor is affected by CVE-2026-42387 due to insufficient input validation in the ZoneToCache function. A malicious authoritative server can send a crafted zone via ZoneToCache, causing the Recursor to crash and impacting availability. Root cause identified as insufficient input validat...

EUVD-2026-39357

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to a crash of the Recursor due to insuffcient input validation...

CVE-2026-33612

A malicious authoritative server can send a crafted zone via the ZoneToCache function that leads to cache poisoning...

CVE-2026-53950

CVE-2026-53950 affects @tryghost/activitypub (Ghost’s ActivityPub client). Before 3.1.0, the ActivityPub client was susceptible to JavaScript injection on posts shared from a maliciously customized ActivityPub server. The issue is fixed in 3.1.0. The associated metrics indicate a high-severity im...

CVE-2026-55199

A vulnerability in libssh2 allows a malicious SSH server to freeze connected clients during the handshake process. By sending a malformed packet, the server triggers a loop that exhausts the client's CPU, resulting in a denial of service. Mitigation To mitigate this issue, ensure your libssh2...

CVE-2026-55653

A flaw was found in OpenSSH. A malicious SSH server can exploit a double free vulnerability in the Diffie-Hellman Group Exchange DH-GEX client path. This occurs during FIPS Federal Information Processing Standards mode known-group validation when the client processes attacker-controlled DH-GEX...

Astra Linux – Vulnerability in Chromium

Insufficient data validation in Reader Mode in Google Chrome on iOS prior to 89.0.4389.72 allowed a remote attacker to leak cross-origin data via a crafted HTML page and a malicious server...

Astra Linux – Vulnerability in Python 2.7, Python 3.7

A flaw was discovered in Python, specifically in the FTP File Transfer Protocol client library when operating in PASV passive mode. The issue arises from how the FTP client defaults to trusting the host based on the PASV response. This flaw allows an attacker to create a malicious FTP server that...

Astra Linux – Vulnerability in Firefox

By using XSL Transforms, a malicious webserver could serve a user an XSL document that would continue to execute JavaScript within the bounds of the same-origin policy even after the tab was closed. This vulnerability affects Firefox versions earlier than 97...

Astra Linux – Vulnerability in curl

This flaw allows a malicious HTTP server to set “super cookies” using curl, which are then transmitted back to multiple origins beyond what is allowed or possible. This enables a site to set cookies that are then sent to different and unrelated sites and domains. The attack exploits a flaw in...

Astra Linux – Vulnerability in libsoup2.4

A denial-of-service vulnerability has been identified in the libsoup HTTP client library. This flaw can be triggered when a libsoup client receives an HTTP response with a status code of 401 Unauthorized, which contains a specially crafted domain parameter within the WWW-Authenticate header...