PT-2026-99082

Name of the Vulnerable Software and Affected Versions Zammad versions 7.0.3 through 7.1.1 Description An authenticated administrator can obtain stored integration credentials in cleartext through the integration administration API. The system fails to consistently mask sensitive fields in certain...

PT-2026-98947

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.2 Zammad versions prior to 7.1.0 Description Zammad is a web-based open source helpdesk and customer support system. The issue involves a lack of discursive validation within the authorization cascade, where...

CVE-2026-63204: Authorization Bypass Through User-Controlled Key

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, an authenticated user with agent permissions can supply an arbitrary AI analytics run identifier to the ticket summarize endpoint and receive the AI provider error message stored for that run, even if the run...

CVE-2026-84460: Authorization Bypass Through User-Controlled Key

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, any authenticated user can call the REST endpoint for getting a tag list and receive the tag names for the given ticket, regardless of whether they have access to that ticket. Tags are an internal categorization...

CVE-2026-84465: Authentication Bypass by Spoofing

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when Zammad checks the digital signature on an incoming S/MIME-signed email, it does not verify that the signing certificate is genuinely trusted, it only checks whether a certificate with a matching name is alrea...

CVE-2026-61525: Improper Limitation of a Pathname to a Restricted Directory

Zammad is a web based open source helpdesk/customer support system. In 7.0.2 and 7.1.0, zammad's session management for websocket and long-polling connections is susceptible to a path traversal attack. Session identifiers supplied by the client are insufficiently validated before being used to...

CVE-2026-56734: Server-Side Request Forgery (SSRF)

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, during federated authentication OAuth/OIDC/SAML, a profile image URL from the external identity provider is fetched without verifying the target address. An actor who controls their profile at a connected provider...

PT-2026-98948

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.0.2 Description During federated authentication OAuth, OIDC, or SAML, the system fetches a profile image URL from an external identity provider without verifying the target address. An actor with control over their...

CVE-2026-56732: Improper Input Validation

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, vulnerability in Zammad's HTML sanitization allows injection of specific HTML elements into ticket bodies. When another user views the crafted ticket, the injected element can trigger a logout request, terminating...

CVE-2026-56729: Exposure of Sensitive Information to an Unauthorized Actor

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, when multiple KB categories have different editor roles assigned, a user with knowledgebase.editor in one category can see answer titles and updatedat timestamps from categories they do not have editor access to ,...

CVE-2026-84464: Exposure of Sensitive Information to an Unauthorized Actor

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, zammad's External Data Source feature, used to look up records from an external system, did not properly verify whether a user was allowed to see a specific ticket, user, group, or organization before including it...

CVE-2026-84461: Observable Discrepancy

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the two-factor login step let an attacker try unlimited password guesses for any account without triggering Zammad's normal lockout or rate limiting. The response also revealed whether a guess was correct, even...

CVE-2026-63006: Improper Limitation of a Pathname to a Restricted Directory

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, attacker-controlled HTML in inbound emails or tickets could bypass the image URL sanitizer using path traversal sequences. When an authenticated agent views the content, the browser resolves the URL to a protected...

CVE-2026-61855: Improper Verification of Cryptographic Signature

Zammad is a web based open source helpdesk/customer support system. In 7.0.3 and 7.1.1, under certain conditions, Zammad's verification of inbound PGP-signed email can mark a message as carrying a valid "Good" PGP signature from a registered sender key, even though the displayed message content i...

CVE-2026-65828: Missing Authorization

Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, the legacy destroyform action on AttachmentsController deletes UploadCache Store records based solely on a user-supplied formid without verifying that the requesting user owns those records. An authenticated...

CVE-2026-56735: Improper Neutralization of Script in Attributes of IMG Tags in a Web Page

Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2 and 7.1.0, zammad's HTML sanitizer HtmlSanitizer::Strict blocks external URLs in to prevent remote content loading, but the srcset attribute, also allowlisted for , is not subject to the same check. This oversight...

PT-2026-99077

Name of the Vulnerable Software and Affected Versions Zammad versions 7.0.3 and 7.1.1 Description Zammad is a web-based open source helpdesk and customer support system. The software incorrectly verifies inbound PGP-signed emails under certain conditions, marking messages as having a valid PGP...

PT-2026-98950

Name of the Vulnerable Software and Affected Versions Zammad version 7.0.2 Zammad version 7.1.0 Description Session management for websocket and long-polling connections is susceptible to a path traversal attack, which occurs when an application uses user-controllable input to construct a path to...

PT-2026-99084

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.1.2 Description Unsanitized option labels are rendered as raw HTML without escaping in the configuration dialogs of AI Agents within the admin UI. An attacker can inject arbitrary HTML and JavaScript by controlling a...

PT-2026-99090

Name of the Vulnerable Software and Affected Versions Zammad versions prior to 7.1.2 Description Zammad fails to properly verify the trust of signing certificates when processing incoming S/MIME-signed emails. Instead of validating the certificate chain, the system only checks if a certificate wi...