CVE-2026-6291 Bleichenbacher padding oracle in PKCS#7 KTRI RSA PKCS#1 v1.5 decryption

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...

EUVD-2026-39482

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...

CVE-2026-6291

CVE-2026-6291 affects wolfSSL (v4.0) and describes a Bleichenbacher padding oracle in PKCS#7 KTRI RSA PKCS#1 v1.5 decryption used for EnvelopedData. The vulnerability arises because error codes differed between RSA padding validation failure and malformed decrypted content, enabling an attacker t...

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...

PT-2026-52530

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...

Oracle Linux 9 : tomcat (ELSA-2026-26323)

The remote Oracle Linux 9 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-26323 advisory. - Resolves: Tomcat: OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled CVE-2026-34500 - Resolves: Tomcat: Cloud membership for clustering...

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 ...

Security Bulletin: Securing your products against OpenSSL and TLS vulnerabilities

Question Security Bulletin: Securing your products against OpenSSL and TLS vulnerabilities "Business Unit":"code":"BU059","label":"IBM Software w/o TPS","Product":"code":"SS8NDZ","label":"IBM Aspera","Component":"","Platform":"code":"PF025","label":"Platform Independent","Version":"All...

Security Bulletin: IBM Watson Discovery Cartridge affected by vulnerability in tomcat-embed-core-11.0.18.jar

Summary IBM Watson Discovery Cartridge affected by vulnerability in tomcat-embed-core-11.0.18.jar Vulnerability Details CVEID:CVE-2026-29146 DESCRIPTION: Padding Oracle vulnerability in Apache Tomcat's EncryptInterceptor with default configuration. This issue affects Apache Tomcat: from 11.0.0-M1...

Use of RSA Algorithm without OAEP

Overview Affected versions of this package are vulnerable to Use of RSA Algorithm without OAEP via the Wss4jSecurityInterceptor class, in the Wss4jSecurityInterceptor.java file due to defaulting allowRSA15KeyTransportAlgorithm to true when building the validation RequestData. This overrides Apach...

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 ...

K000161596: Multiple Apache Tomcat vulnerabilities

Security Advisory Description CVE-2026-25854 Occasional URL redirection to untrusted Site 'Open Redirect' vulnerability in Apache Tomcat via the LoadBalancerDrainingValve. This issue affects Apache Tomcat: from 11.0.0-M1 through 11.0.18, from 10.1.0-M1 through 10.1.52, from 9.0.0.M23 through...

Apache Tomcat: Apache Tomcat: Information disclosure via Padding Oracle vulnerability in EncryptInterceptor

A flaw was found in Apache Tomcat. This Padding Oracle vulnerability, present in the EncryptInterceptor with its default configuration, could allow a remote attacker to decrypt sensitive information. By exploiting weaknesses in the encryption padding, an attacker may be able to gain unauthorized...

Apache Tomcat: Apache Tomcat: Information disclosure via Padding Oracle vulnerability in EncryptInterceptor

A flaw was found in Apache Tomcat. This Padding Oracle vulnerability, present in the EncryptInterceptor with its default configuration, could allow a remote attacker to decrypt sensitive information. By exploiting weaknesses in the encryption padding, an attacker may be able to gain unauthorized...

Astra Linux – Vulnerability in openssl1.0

In situations where an attacker receives automated notifications of the success or failure of a decryption attempt, an attacker can recover the CMS/PKCS7 transport encryption key after sending a very large number of messages to be decrypted. They can also decrypt any RSA-encrypted message encrypt...

Astra Linux – Vulnerability in Tomcat9

The Padding Oracle vulnerability exists in Apache Tomcat’s EncryptInterceptor with the default configuration. This issue affects Apache Tomcat versions as follows: 11.0.0-M1 through 11.0.18, 10.0.0-M1 through 10.1.52, 9.0.13 through 9.0.115, 8.5.38 through 8.5.100, and 7.0.100 through 7.0.109...

Security Bulletin: Vulnerabilities in Apache Tomcat and Lodash might affect IBM Storage Defender Copy Data Management

Summary IBM Storage Defender Copy Data Management can be affected by vulnerabilities in Apache Tomcat and Lodash. Vulnerabilities include Improper Input Validation vulnerability in Apache Tomcat, Inconsistent Interpretation of HTTP Requests 'HTTP Request/Response Smuggling' vulnerability in Apach...

RHCOS 2 : node.js (RHSA-2015:1546)

The remote Red Hat Enterprise Linux CoreOS 2 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2015:1546 advisory. - SSL/TLS: Padding Oracle On Downgraded Legacy Encryption attack CVE-2014-3566 Note that Nessus has not tested for this issue but has instead...

RHCOS 2 : node.js (RHSA-2015:1545)

The remote Red Hat Enterprise Linux CoreOS 2 host has a package installed that is affected by a vulnerability as referenced in the RHSA-2015:1545 advisory. - SSL/TLS: Padding Oracle On Downgraded Legacy Encryption attack CVE-2014-3566 Note that Nessus has not tested for this issue but has instead...