CVE-2026-15999: Improper Validation of Integrity Check Value

Improper validation of integrity check value in the AES-CCM implementation CcmParameters and CcmBlockCipher in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an on-path attacker to modify CCM-encrypted content without detection via an AlgorithmIdentifier whose CCMParameters declar...

CVE-2026-16000: Missing Cryptographic Step

Missing cryptographic step in the DSTU 7624 CCM mode implementation KCcmBlockCipher in Legion of the Bouncy Castle Inc. bc-csharp before 2.7.0 allows an attacker who can observe encrypted messages of known or chosen content to forge ciphertexts with valid authentication tags, via messages encrypt...

AlmaLinux 9.2 [TuxCare] Security Update: openssl / openssl-devel / openssl-libs / openssl-perl (ALMALINUX9.2:CLSA-2024:1709548308)

The AlmaLinux 9.2 host has packages installed that are affected by a vulnerability as referenced in the TuxCare ALMALINUX9.2:CLSA-2024:1709548308 advisory. - Issue summary: A bug has been identified in the processing of key and initialisation vector IV lengths. This can lead to potential truncati...

Rocky Linux 8 [CIQ] Security Update: apcu-panel / libzip / libzip-debuginfo / libzip-debugsource / etc Multiple Vulnerabilities (crlsa-2021_4213)

The Rocky Linux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the CIQ crlsa-20214213 advisory. php: Wrong ciphertext/tag in AES-CCM encryption for a 12 bytes IV CVE-2020-7069 php: FILTERVALIDATEURL accepts URLs with invalid userinfo CVE-2020-7071 php...

CVE-2026-85387

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

CVE-2026-87031

n Concrete CMS 9.2.0 through 9.5.3, the REST API user creation endpoint POST /ccm/api/1.0/users, the add method of concrete/src/Api/Controller/Users.php did not perform a permission check before creating an account. As a result, any valid OAuth token carrying the users:add scope, including a...

CVE-2026-85387 Concrete CMS before 9.5.4 allows a deactivated user to retain OAuth-authenticated REST API access

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

EUVD-2026-80892

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

CVE-2026-85387 Concrete CMS before 9.5.4 allows a deactivated user to retain OAuth-authenticated REST API access

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

CVE-2026-85387

Concrete CMS before 9.5.4 contains an insufficient session expiration flaw in its OAuth REST API authorization validator. The validator confirmed only that a bearer token existed, had not expired, and had not been explicitly revoked, but did not re-check the account state of the token's owner. Co...

PT-2026-93854

Name of the Vulnerable Software and Affected Versions Concrete CMS versions 9.2.0 through 9.5.3 Description The REST API user creation endpoint 'POST /ccm/api/1.0/users', specifically the add function in concrete/src/Api/Controller/Users.php, fails to perform a permission check before creating an...

PT-2026-93873

Name of the Vulnerable Software and Affected Versions Concrete CMS versions prior to 9.5.4 Description The software re-authorized OAuth REST API requests based solely on the bearer token without verifying the current state of the associated account. The authorization validator only checked if the...

CVE-2026-85387: Insufficient Session Expiration

Concrete CMS before 9.5.4 re-authorized OAuth REST API requests from the bearer token alone and did not re-check the state of the account the token had been issued to. The resource server's authorization validator confirmed only that a token existed, had not expired, and had not been explicitly...

CVE-2026-18110

Concrete CMS 9 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to t...

CVE-2026-18110 Concrete CMS 9.0.0 through 9.5.2 is vulnerable to missing authorization in the user selector autocomplete endpoint (/ccm/system/user/autocomplete), allowing an unauthenticated attacker to retrieve the complete backend user directory — internal ID, username

Concrete CMS 9 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to t...

CVE-2026-18115: Missing Authorization

Concrete CMS 9.2.0 to 9.5.2 did not enforce per-field edituserproperties permissions on the REST API user write endpoints PUT /ccm/api/1.0/users/uID and POST /ccm/api/1.0/users/uID/changepassword. A user with an update-scoped OAuth token and permission to edit only one non-sensitive field could...

CVE-2026-18110: Missing Authorization

Concrete CMS 9 9.0.0 through 9.5.2 does not perform an authorization check on the user selector autocomplete endpoint /ccm/system/user/autocomplete, which backs the "Preview as User" panel and other user-selector components. The endpoint validates only a CSRF-style access token that is bound to t...

Astra Linux – Vulnerability in PHP 7.3

In PHP versions 7.2.x below 7.2.34, 7.3.x below 7.3.23, and 7.4.x below 7.4.11, when AES-CCM mode is used with the opensslencrypt function and a 12-byte IV is provided, only the first 7 bytes of the IV are actually used. This can result in reduced security and incorrect encrypted data...

CVE-2026-81901: Missing Authorization

In Concrete CMS 9.2.0 through 9.5.2, the REST API page update endpoint PUT /ccm/api/1.0/pages/cID did not enforce page-property, page-template, or page-type authorization. A user granted only content-editing rights on a page could therefore alter its properties, template, and type through the API...

Amazon Linux 2023 : bouncycastle, bouncycastle-javadoc, bouncycastle-mail (ALAS2023-2026-2153)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2153 advisory. In Bouncy Castle for Java before 1.85, KCCMBlockCipher MAC does not bind nonce when AAD is absent cross- nonce AEAD forgery. This issue also affects Bouncy Castle for Java LTS before 2.73.12...