OpenSSH: OpenSSH: Information disclosure due to unintended cryptographic algorithm usage

A flaw was found in OpenSSH. This vulnerability allows the system to use unintended Elliptic Curve Digital Signature Algorithm ECDSA algorithms. This occurs because the configuration for accepted public key algorithms is misinterpreted, leading to the use of weaker cryptographic methods than...

CVE-2026-42859 Neat VNC: Buffer overflow due to oversized RSA public keys

Neat VNC is a VNC server library. Prior to 0.9.6, a pre-authentication stack buffer overflow exists in neatvnc in the RSA-AES security type handler. An unauthenticated remote attacker who can reach the VNC listening socket can send a crafted security type 5 RSA-AES or security type 129 RSA-AES-25...

CVE-2026-42859 Neat VNC: Buffer overflow due to oversized RSA public keys

Neat VNC is a VNC server library. Prior to 0.9.6, a pre-authentication stack buffer overflow exists in neatvnc in the RSA-AES security type handler. An unauthenticated remote attacker who can reach the VNC listening socket can send a crafted security type 5 RSA-AES or security type 129 RSA-AES-25...

Linux Distros Unpatched Vulnerability : CVE-2026-5246

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A vulnerability was determined in Cesanta Mongoose up to 7.20. Affected is the function mgtlsverifycertsignature of the file mongoose.c of the component P-384...

CVE-2026-7598

A flaw was found in the libssh2 library. A remote attacker can exploit an integer overflow vulnerability in the userauthpassword function by manipulating the usernamelen or passwordlen arguments and cause a heap-based buffer overflow. This leads to a crash to the application linked to the library...

GHSA-HFCF-V2F8-X9PC bitcoinj has a ScriptExecution P2PKH/P2WPKH Verification Bypass

Summary ScriptExecution.correctlySpends contains two fast-path verification bugs for standard P2PKH and native P2WPKH spends in core/src/main/java/org/bitcoinj/script/ScriptExecution.java. In both branches, bitcoinj verifies an attacker-controlled signature/public-key pair but fails to verify tha...

PT-2026-39293

Summary ScriptExecution.correctlySpends contains two fast-path verification bugs for standard P2PKH and native P2WPKH spends in core/src/main/java/org/bitcoinj/script/ScriptExecution.java. In both branches, bitcoinj verifies an attacker-controlled signature/public-key pair but fails to verify tha...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: openssh (UTSA-2026-016492)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016492 advisory. OpenSSH before 10.3 can use unintended ECDSA algorithms. Listing of any ECDSA algorithm in PubkeyAcceptedAlgorithms or HostbasedAcceptedAlgorithms is misinterpreted ...

bouncycastle: BC-JAVA: PKIX draft CompositeVerifier accepts empty signature sequence as valid

A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix. The PKIX draft CompositeVerifier implementation improperly accepts an empty signature sequence as a valid cryptographic signature. This issue allows a remote attacker to bypass signature verification mechanisms, potentially...

GHSA-H27V-PH7W-M9FP Nginx-UI: Unauthenticated First-Run Installer Allows Remote Initial Admin Claim

Summary An unauthenticated network attacker can claim the initial administrator account on a fresh nginx-ui instance during the first-run setup window. The public /api/install endpoint is reachable without authentication, and the request-encryption flow only protects payload confidentiality in...

CLSA-2026-1778072039 openssl: Fix of CVE-2026-31790

CVE-2026-31790: fix RSA KEM RSASVE encapsulation memory leak by validating RSApublicencrypt return value and cleansing secret on failure...

EUVD-2026-27514

In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm...

CVE-2026-44405

In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm...

Exploit for CVE-2026-29000

HackTheBox — Principal Difficulty: Medium OS: Linux...

bouncycastle: BC-JAVA: PKIX draft CompositeVerifier accepts empty signature sequence as valid

A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix. The PKIX draft CompositeVerifier implementation improperly accepts an empty signature sequence as a valid cryptographic signature. This issue allows a remote attacker to bypass signature verification mechanisms, potentially...

bouncycastle: BC-JAVA: PKIX draft CompositeVerifier accepts empty signature sequence as valid

A flaw was found in Legion of the Bouncy Castle Inc. BC-JAVA bcpkix. The PKIX draft CompositeVerifier implementation improperly accepts an empty signature sequence as a valid cryptographic signature. This issue allows a remote attacker to bypass signature verification mechanisms, potentially...

openssh security update

8.0p1-29.0.1 - Update upstream references Orabug: 36587718 8.0p1-29 - CVE-2026-35385: Fix privilege escalation via scp legacy protocol when not in preserving file mode Resolves: RHEL-164743 - CVE-2026-35388: Add connection multiplexing confirmation for proxy-mode multiplexing sessions Resolves:...

openssh security update

9.9p1-14.0.1 - Upstream references found with /usr/bin/ssh Orabug: 37824421 9.9p1-14 - CVE-2026-35385: Fix privilege escalation via scp legacy protocol when not in preserving file mode Resolves: RHEL-164738 - CVE-2026-35388: Add connection multiplexing confirmation for proxy-mode multiplexing...

Security Bulletin: Vulnerability in Elasticsearch PKI realm affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge.

Summary Potential vulnerability in Elasticsearch PKI realm has been identified that affects IBM watsonx Assistant Cartridge and IBM watsonx Orchestrate with watsonx Assistant Cartridge - Assistant Builder Component. . The vulnerability have been addressed. Refer to details for additional...

JLSEC-2026-426 When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool,curl...

When using CURLOPTPINNEDPUBLICKEY option with libcurl or --pinnedpubkey with the curl tool,curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would then make curl allow the connection without performing the proper chec...