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Product · Matrix

sydent

5 known vulnerabilities.

sydent at a glance

Last 12 months
0
Critical · all time
1
Exploited · all time
0
Public exploit · all time
0
New vulnerabilities per month · last 12 months
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All Critical High Medium Low Exploited only Public exploit

5 results · Feed

  • Critical 9.3
    CVE-2023-38686

    Sydent does not verify email server certificates

    Sydent is an identity server for the Matrix communications protocol. Prior to version 2.5.6, if configured to send emails using TLS, Sydent does not verify SMTP servers' certificates. This makes Sydent's emails vulnerable to interception via a man-in-the-midd…

    Matrix sydent matrix-sydent matrix-sydent Ubuntu PyPI
  • High 7.7
    CVE-2021-29431

    SSRF in Sydent due to missing validation of hostnames

    Sydent is a reference Matrix identity server. Sydent can be induced to send HTTP GET requests to internal systems, due to lack of parameter validation or IP address blacklisting. It is not possible to exfiltrate data or control request headers, but it might b…

    Matrix sydent matrix-sydent PyPI
  • Medium 5.3
    CVE-2021-29432

    Malicious users could control the content of invitation emails

    Sydent is a reference matrix identity server. A malicious user could abuse Sydent to send out arbitrary emails from the Sydent email address. This could be used to construct plausible phishing emails, for example. This issue has been fixed in 4469d1d.

    Matrix sydent matrix-sydent PyPI
  • High 7.5
    CVE-2021-29430

    Denial of service attack via memory exhaustion

    Sydent is a reference Matrix identity server. Sydent does not limit the size of requests it receives from HTTP clients. A malicious user could send an HTTP request with a very large body, leading to memory exhaustion and denial of service. Sydent also does no…

    Matrix sydent matrix-sydent PyPI
  • Medium 4.3
    CVE-2021-29433

    Denial of service (via resource exhaustion) due to improper input validation

    Sydent is a reference Matrix identity server. In Sydent versions 2.2.0 and prior, sissing input validation of some parameters on the endpoints used to confirm third-party identifiers could cause excessive use of disk space and memory leading to resource exhau…

    Matrix sydent matrix-sydent PyPI