ALPINE-CVE-2026-42768

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...

AZL-90090 CVE-2026-42768 affecting package openssl for versions less than 3.3.7-3

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...

CVE-2026-42768 Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()

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...

CVE-2026-42768 Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()

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...

CVE-2026-42768

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...

CVE-2026-42768 Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()

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...

CVE-2026-42768

The CVE-2026-42768 issue concerns Bleichenbacher-style side-channel attacks against CMS_decrypt() and PKCS7_decrypt() in OpenSSL. The vulnerability arises when processing CMS or S/MIME messages with multiple RecipientInfo entries (KTRI). In variant 1, decryption is attempted without a recipient c...

CVE-2026-42768

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...

PT-2026-47838

Name of the Vulnerable Software and Affected Versions OpenSSL affected versions not specified Description The CMS decrypt and PKCS7 decrypt functions are susceptible to a Bleichenbacher-style attack, which is an adaptive-chosen-ciphertext side channel. This allows an attacker to use a vulnerable...

OpenSSL 3.5.0 < 3.5.7 Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 3.5.7. It is, therefore, affected by multiple vulnerabilities as referenced in the 3.5.7 advisory. - Issue summary: A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature verification...

OpenSSL 安全漏洞

OpenSSL is an open-source encryption library developed by the OpenSSL team, capable of implementing Secure Sockets Layer SSLv2/v3 and Secure Transport Layer TLSv1 protocols. This product supports various encryption algorithms, including symmetric ciphers, hash algorithms, and secure hash...

OpenSSL 4.0.0 < 4.0.1 Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 4.0.1. It is, therefore, affected by multiple vulnerabilities as referenced in the 4.0.1 advisory. - Issue summary: A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature verification...

OpenSSL 3.6.0 < 3.6.3 Multiple Vulnerabilities

The version of OpenSSL installed on the remote host is prior to 3.6.3. It is, therefore, affected by multiple vulnerabilities as referenced in the 3.6.3 advisory. - Issue summary: A specially crafted PKCS7 or S/MIME signed message could trigger a use-after-free during PKCS7 signature verification...

UBUNTU-CVE-2026-42768

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...

RSA1_5 (RSAES-PKCS1-v1_5) decryption lacks implicit rejection, exposing a Bleichenbacher/Marvin padding oracle

Impact RSACrypt::decryptWithRSA15 used by the RSA15 key-encryption algorithm implements RSAES-PKCS1-v15 decryption by inspecting the padding after RSADP and throwing InvalidArgumentException as soon as the padding is malformed. It does not implement the implicit-rejection countermeasure required ...

RSA1_5 (RSAES-PKCS1-v1_5) decryption lacks implicit rejection, exposing a Bleichenbacher/Marvin padding oracle

Impact RSACrypt::decryptWithRSA15 used by the RSA15 key-encryption algorithm implements RSAES-PKCS1-v15 decryption by inspecting the padding after RSADP and throwing InvalidArgumentException as soon as the padding is malformed. It does not implement the implicit-rejection countermeasure required ...

Security Bulletin: Due to use of node-forge-1.3.1.tgz, IBM Sterling Connect:Direct Web Services is affected by Denial of Service (DoS).

Summary node-forge-1.3.1.tgz is used by IBM Sterling Connect:Direct Web Services CVE-2026-33891, CVE-2026-33894, CVE-2026-33895, CVE-2026-33896. Vulnerability Details CVEID:CVE-2026-33891 DESCRIPTION: Forge also called node-forge is a native implementation of Transport Layer Security in JavaScrip...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: python-rsa (UTSA-2026-016608)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-016608 advisory. It was found that python-rsa is vulnerable to Bleichenbacher timing attacks. An attacker can use this flaw via the RSA decryption API to decrypt parts of the cipher...

JLSEC-2026-218 In situations where an attacker receives automated notification of the success or failure of a...

In situations where an attacker receives automated notification of the success or failure of a decryption attempt an attacker, after sending a very large number of messages to be decrypted, can recover a CMS/PKCS7 transported encryption key or decrypt any RSA encrypted message that was encrypted...

JLSEC-2026-231 openssl-src subject to Timing Oracle in RSA Decryption

A timing based side channel exists in the OpenSSL RSA Decryption implementation which could be sufficient to recover a plaintext across a network in a Bleichenbacher style attack. To achieve a successful decryption an attacker would have to be able to send a very large number of trial messages fo...