CVE-2026-107121 Keycloak-services: keycloak-services: smtp starttls plaintext credential and message downgrade

A flaw was found in the SMTP email configuration handling of the keycloak-services component. When the STARTTLS option is enabled, Keycloak fails to strictly enforce an encrypted connection, allowing it to fall back to unencrypted communication if the encryption request is tampered with. An...

MGASA-2026-0469 Updated srt package fixes security vulnerabilities

Encryption State Machine Downgrade. CVE-2026-55868 KMREQ/KMRSP Stack-Based Buffer Overflow. CVE-2026-55869...

Updated srt package fixes security vulnerabilities

Encryption State Machine Downgrade. CVE-2026-55868 KMREQ/KMRSP Stack-Based Buffer Overflow. CVE-2026-55869...

CVE-2026-98368

In the Linux kernel, the following vulnerability has been resolved: esp: downgrade zerocopy managed frags before mutating skb frags On the out-of-place output path esp-inplace == false ESP rewrites the skb frag array: espoutputhead appends a trailer frag and espoutputtail replaces the frags with ...

CVE-2026-105766 Chainguard Academy (edu) Nginx directory redirect downgrades HTTPS requests to HTTP

Use of the backend-facing $scheme variable in the trailing-slash directory redirect in nginx.conf of Chainguard Academy edu from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0e50739c225f5aee2e803800a47fc0feb906 allows an on-path network attacker to read or modify documentatio...

CVE-2026-105766 Chainguard Academy (edu) Nginx directory redirect downgrades HTTPS requests to HTTP

Use of the backend-facing $scheme variable in the trailing-slash directory redirect in nginx.conf of Chainguard Academy edu from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0e50739c225f5aee2e803800a47fc0feb906 allows an on-path network attacker to read or modify documentatio...

CVE-2026-105766

The Chainguard Academy (edu) website is vulnerable to an HTTPS to HTTP downgrade attack due to the use of the backend-facing $scheme variable in the nginx.conf trailing-slash directory redirect. This issue exists in versions from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0...

CVE-2026-105766 Chainguard Academy (edu) Nginx directory redirect downgrades HTTPS requests to HTTP

Use of the backend-facing $scheme variable in the trailing-slash directory redirect in nginx.conf of Chainguard Academy edu from commit 0b75ff98057f69b044a3e7194e428066ac5ad0d4 before commit 93dc0e50739c225f5aee2e803800a47fc0feb906 allows an on-path network attacker to read or modify documentatio...

Astra Linux – Vulnerability in Thunderbird

Thunderbird ignored the configuration that required STARTTLS security for SMTP connections. A MITM could perform a downgrade attack to intercept transmitted messages, or could take control of the authenticated session to execute SMTP commands chosen by the MITM. If an unprotected authentication...

CVE-2026-72887

A flaw was found in Net::OAuth::Client. A malicious service provider can silently downgrade an OAuth 1.0a connection to OAuth 1.0 by omitting the oauthcallbackconfirmed parameter in the request token response. This downgrade vulnerability removes the oauthverifier binding, making the application...

cve-2026-43499-firetv-sheldonp-writeup

CVE-2026-43499 on Amazon Fire TV Stick 3rd Gen sheldonp Chaining a Linux kernel privilege escalation into a preloader downgrade and bootloader unlock. Overview This repository documents my authorized reproduction of the CVE-2026-43499 exploitation chain on an Amazon Fire TV Stick 3rd Gen sheldonp...

CVE-2019-19652

CVE-2019-19652 Chevereto downgrade attack - 1.0.0 - 1.1.4 Free, = 3.13.5 Core. An admin user can instruct the updater script to downgrade to another version instead of upgrade, reintroducing previous flaws. Due to the lack of a CSRF token this attack can also be used in a CSRF attack, meaning an...

wireshark-rdp

Sample RDP Wireshark capture files Here is a collection of RDP decrypted capture files, showing various scenarios. RDP with NLA, Kerberos password authentication 1 rdp-nla-kerberos-auth1.pcapng Username: [email protected] Server: IT-HELP-TEST.ad.it-help.ninja Authentication: RDP NLA with...

CVE-2026-11109-Bluetooth-Classic-KNOB-Attack-Key-Negotiation-of-Bluetooth-

CVE-2026-11109 – Bluetooth Classic KNOB Attack Key Negotiation of Bluetooth Program Code Python Simulated knobattacksim.py - Simulates negotiation of encryption key size to 1 byte import random, hashlib class BluetoothDevice: def negotiatekeysizeself, proposedsize: Vulnerable: accepts any key siz...

RemoteMonologue

RemoteMonologue RemoteMonologue is a Windows credential harvesting technique that enables remote user compromise by leveraging the Interactive User RunAs key and coercing NTLM authentications via DCOM. Read X-Force Red's RemoteMonologue: Weaponizing DCOM for NTLM Authentication Coercions for...

CVE-2024-3094

CVE-2024-3094 Affected version : xz-5.6.0 or xz-5.6.1 Solution : downgrade xz from 5.6.0 to 5.4.6. xz-backdoor.md CVE-2024-3094 Checker...

CVE-2026-22002-VNC-Authentication-Bypass-via-Protocol-Version-Confusion

CVE-2026-22002 – VNC Authentication Bypass via Protocol Version Confusion Program Code Python vncserversim.py - VNC server with version negotiation flaw import socket, struct def handleconn: Send server version "RFB 003.008\n" conn.sendb"RFB 003.008\n" Receive client version clientver = conn.recv...

Rocky Linux 8 [CIQ] Security Update: nspr / nspr-debuginfo / nspr-debugsource / nspr-devel Multiple Vulnerabilities (crlsa-2020_3280)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20203280 advisory. nss: UAF in sftkFreeSession due to improper refcounting CVE-2019-11756 nss: Check length of inputs for cryptographic primitives CVE-2019-17006 nss: Side...

Rocky Linux 10.2 [CIQ] Security Update: libssh / libssh-config / libssh-debuginfo / libssh-debugsource / etc Multiple Vulnerabilities (crlsa-2026_55855)

The Rocky Linux 10.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-202655855 advisory. libssh: libssh: information disclosure via short GSSAPI Curve25519 public key CVE-2026-59842 libssh: libssh: denial of service via zero advertised...

Rocky Linux 8 [CIQ] Security Update: thunderbird / thunderbird-debuginfo / thunderbird-debugsource Multiple Vulnerabilities (crlsa-2021_3838)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20213838 advisory. Mozilla: Use-after-free in MessageTask CVE-2021-38496 Mozilla: Memory safety bugs fixed in Firefox 93, Firefox ESR 78.15, and Firefox ESR 91.2 CVE-2021-385...