1160 matches found
CVE-2026-6291
Bleichenbacher padding oracle in PKCS7 KTRI decryption. When decrypting PKCS7 EnvelopedData using RSA PKCS1 v1.5 key transport, wolfSSL returned distinguishable error codes depending on whether RSA padding validation failed versus whether the decrypted content was malformed. An attacker able to...
GHSA-5739-39V2-5754 PHP JWT Library: 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 ...
Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()
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SUSE 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...
OESA-2026-2612 nss security update
Network Security Services NSS is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS 5, PKCS 7, PKCS 11, PKCS 12, S/MIME, X.509 v3 certificates, and other security...
RockyLinux 9 : openssl (RLSA-2026:25239)
The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:25239 advisory. openssl: OpenSSL: Heap buffer overflow due to signed integer overflow in Unicode output sizing CVE-2026-7383 openssl: OpenSSL: Denial of Service due to...
openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()
A flaw was found in OpenSSL's CMSdecrypt and PKCS7decrypt functions. This vulnerability, a Bleichenbacher-style oracle, could allow a remote attacker to decrypt or sign messages using the victim's private RSA key. Exploitation requires the attacker to provide specially crafted CMS or S/MIME...
openssl: Multi-RecipientInfo Bleichenbacher Oracle in CMS_decrypt() and PKCS7_decrypt()
A flaw was found in OpenSSL's CMSdecrypt and PKCS7decrypt functions. This vulnerability, a Bleichenbacher-style oracle, could allow a remote attacker to decrypt or sign messages using the victim's private RSA key. Exploitation requires the attacker to provide specially crafted CMS or S/MIME...
CVE-2026-42768
A flaw was found in OpenSSL's CMSdecrypt and PKCS7decrypt functions. This vulnerability, a Bleichenbacher-style oracle, could allow a remote attacker to decrypt or sign messages using the victim's private RSA key. Exploitation requires the attacker to provide specially crafted CMS or S/MIME...
Linux Distros Unpatched Vulnerability : CVE-2026-42768
The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...
EUVD-2026-35485
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...
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...
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...
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 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...
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...