CVE-2026-63573

Observable discrepancy in the CMS RSA PKCS1 v1.5 key-transport unwrap KeyTransRecipientInformation.UnwrapKey in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who holds a captured CMS EnvelopedData message, and who can submit many modified messages to an...

CVE-2026-63573

A Bleichenbacher-style adaptive chosen-ciphertext attack exists in Legion of the Bouncy Castle Inc. bc-csharp versions before 2.7.0 . The vulnerability is located in the CMS RSA PKCS#1 v1.5 key-transport unwrap (KeyTransRecipientInformation.UnwrapKey) component. Because the system rejects ciphert...

EUVD-2026-91224

Observable discrepancy in the CMS RSA PKCS1 v1.5 key-transport unwrap KeyTransRecipientInformation.UnwrapKey in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who holds a captured CMS EnvelopedData message, and who can submit many modified messages to an...

PT-2026-104132

Observable discrepancy in the CMS RSA PKCS1 v1.5 key-transport unwrap KeyTransRecipientInformation.UnwrapKey in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who holds a captured CMS EnvelopedData message, and who can submit many modified messages to an...

CVE-2026-63573: Observable Discrepancy

Observable discrepancy in the CMS RSA PKCS1 v1.5 key-transport unwrap KeyTransRecipientInformation.UnwrapKey in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows a remote attacker who holds a captured CMS EnvelopedData message, and who can submit many modified messages to an...

Rocky Linux 9 [CIQ] Security Update: mod_http2 / mod_http2-debuginfo / mod_http2-debugsource (crlsa-2026_25057)

The Rocky Linux 9 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625057 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block direct...

Rocky Linux 10.2 [CIQ] Security Update: mod_http2 / mod_http2-debuginfo / mod_http2-debugsource (crlsa-2026_25225)

The Rocky Linux 10.2 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625225 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block...

Rocky Linux 8 [CIQ] Security Update: httpd / httpd-debuginfo / httpd-debugsource / httpd-devel / etc (crlsa-2026_25090)

The Rocky Linux 8 host has packages installed that are affected by a vulnerability as referenced in the CIQ crlsa-202625090 advisory. httpd: HTTP/2: Remote Denial of Service via compression bomb and Slowloris-style attack CVE-2026-49975 Tenable has extracted the preceding description block direct...

AlmaLinux 9.2 [TuxCare] Security Update: libgcrypt / libgcrypt-devel (ALMALINUX9.2:CLSA-2025:1737656427)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2025:1737656427 advisory. - A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a...

CVE-2026-94588: Improper Neutralization of Argument Delimiters in a Command

In Proxmox pmg-api, an argument injection vulnerability exists in the package changelog retrieval functionality. This is caused by improper handling of user-supplied input passed to the underlying apt-get command when fetching package changelogs. It requires authentication but can be exploited in...

Important: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.2.6

Red Hat OpenShift Service Mesh 3.2.6 This update has a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the CVE links in the References section. Red Hat OpenShift Service Mesh 3.2....

CVE-2026-42768: Covert Channel

Issue summary: The CMSdecrypt and PKCS7decrypt functions are vulnerable to Bleichenbacher-style attack when an attacker is able to provide the CMS or S/MIME messages and observe the error code and/or decryption output. Impact summary: The Bleichenbacher-style attack allows an attacker to use the...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in axios-1.12.2.tgz

Summary IBM Watson Discovery Cartridge affected by vulnerability in axios-1.12.2.tgz Vulnerability Details CVEID:CVE-2026-40175 DESCRIPTION: Axios is a promise based HTTP client for the browser and Node.js. Versions prior to 1.15.0 and 0.3.1 are vulnerable to a specific gadget-style attack chain ...

Breaking a 5-Bit Elliptic Curve Key Using a 133-Qubit Quantum Computer

This experiment breaks a 5-bit elliptic curve cryptographic key using a Shor-style quantum attack. Executed on IBM's 133-qubit ibmtorino with Qiskit Runtime 2.0, a 15-qubit circuit, comprised of 10 logical qubits and 5 ancilla, interferes over an order-32 elliptic curve subgroup to extract the...

libgcrypt: vulnerable to Marvin Attack

A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA ciphertexts...

Amazon Linux 2023 : libgcrypt, libgcrypt-devel (ALAS2023-2024-736)

It is, therefore, affected by a vulnerability as referenced in the ALAS2023-2024-736 advisory. A timing-based side-channel flaw was found in libgcrypt's RSA implementation. This issue may allow a remote attacker to initiate a Bleichenbacher-style attack, which can lead to the decryption of RSA...

CVE-2024-2408

The RSA decryption implementation using PKCS1 v1.5 padding in OpenSSL is vulnerable to a timing side-channel attack known as the Marvin Attack. This vulnerability arises because the execution time of the opensslprivatedecrypt function in PHP with OpenSSL varies based on whether a valid message is...

K000139508: rust-openssl vulnerability CVE-2024-3296

Security Advisory Description A timing-based side-channel flaw exists in the rust-openssl package, which could be sufficient to recover a plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of tria...

CVE-2024-2467

A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages. The...

CVE-2024-2467

A timing-based side-channel flaw exists in the perl-Crypt-OpenSSL-RSA package, which could be sufficient to recover plaintext across a network in a Bleichenbacher-style attack. To achieve successful decryption, an attacker would have to be able to send a large number of trial messages. The...