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16 vulnerabilities found for Apache Guacamole by Apache Software Foundation

CVE-2024-35164 (GCVE-0-2024-35164)

Vulnerability from cvelistv5 – Published: 2025-07-02 11:23 – Updated: 2025-11-04 21:08
VLAI?
Summary
The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes could allow arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.6.0, which fixes this issue.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0.8.0 , ≤ 1.5.5 (semver)
Create a notification for this product.
Credits
Tizian Seehaus (Tibotix)
Show details on NVD website
To clipboard 

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CVE-2023-43826 (GCVE-0-2023-43826)

Vulnerability from cvelistv5 – Published: 2023-12-19 19:50 – Updated: 2025-08-21 03:55
VLAI?
Summary
Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.5.4, which fixes this issue.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
0 (None)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0 , ≤ 1.5.3 (semver)
Create a notification for this product.
Credits
Joseph Surin (Elttam) Matt Jones (Elttam)
Show details on NVD website
To clipboard 

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CVE-2023-30576 (GCVE-0-2023-30576)

Vulnerability from cvelistv5 – Published: 2023-06-07 08:06 – Updated: 2024-10-10 14:43
VLAI?
Summary
Apache Guacamole 0.9.10 through 1.5.1 may continue to reference a freed RDP audio input buffer. Depending on timing, this may allow an attacker to execute arbitrary code with the privileges of the guacd process.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0.9.10 , ≤ 1.5.1 (semver)
Create a notification for this product.
Credits
Stefan Schiller (Sonar)
Show details on NVD website
To clipboard 

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CVE-2023-30575 (GCVE-0-2023-30575)

Vulnerability from cvelistv5 – Published: 2023-06-07 08:06 – Updated: 2024-10-10 14:39
VLAI?
Summary
Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0 , ≤ 1.5.1 (semver)
Create a notification for this product.
Credits
Stefan Schiller (Sonar)
Show details on NVD website
To clipboard 

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CVE-2021-43999 (GCVE-0-2021-43999)

Vulnerability from cvelistv5 – Published: 2022-01-11 22:10 – Updated: 2024-08-04 04:10
VLAI?
Summary
Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses received from a SAML identity provider. If SAML support is enabled, this may allow a malicious user to assume the identity of another Guacamole user.
Severity ?
No CVSS data available.
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 1.3.0
Affected: 1.2.0
Create a notification for this product.
Credits
We would like to thank Finn Steglich (ETAS) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2021-41767 (GCVE-0-2021-41767)

Vulnerability from cvelistv5 – Published: 2022-01-11 22:10 – Updated: 2024-08-04 03:15
VLAI?
Summary
Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection.
Severity ?
No CVSS data available.
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: unspecified , ≤ 1.3.0 (custom)
Create a notification for this product.
Credits
We would like to thank Damian Velardo (Australia and New Zealand Banking Group) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2018-1340 (GCVE-0-2018-1340)

Vulnerability from cvelistv5 – Published: 2019-02-07 22:00 – Updated: 2024-09-16 19:20
VLAI?
Summary
Prior to 1.0.0, Apache Guacamole used a cookie for client-side storage of the user's session token. This cookie lacked the "secure" flag, which could allow an attacker eavesdropping on the network to intercept the user's session token if unencrypted HTTP requests are made to the same domain.
Severity ?
No CVSS data available.
CWE
  • Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: Apache Guacamole 0.9.4 to 0.9.14
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2017-3158 (GCVE-0-2017-3158)

Vulnerability from cvelistv5 – Published: 2018-01-18 20:00 – Updated: 2024-09-16 16:37
VLAI?
Summary
A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.
Severity ?
No CVSS data available.
CWE
  • Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: Apache Guacamole 0.9.5 to 0.9.10-incubating
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2024-35164 (GCVE-0-2024-35164)

Vulnerability from nvd – Published: 2025-07-02 11:23 – Updated: 2025-11-04 21:08
VLAI?
Summary
The terminal emulator of Apache Guacamole 1.5.5 and older does not properly validate console codes received from servers via text-based protocols like SSH. If a malicious user has access to a text-based connection, a specially-crafted sequence of console codes could allow arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.6.0, which fixes this issue.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
  • CWE-129 - Improper Validation of Array Index
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0.8.0 , ≤ 1.5.5 (semver)
Create a notification for this product.
Credits
Tizian Seehaus (Tibotix)
Show details on NVD website
To clipboard 

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CVE-2023-43826 (GCVE-0-2023-43826)

Vulnerability from nvd – Published: 2023-12-19 19:50 – Updated: 2025-08-21 03:55
VLAI?
Summary
Apache Guacamole 1.5.3 and older do not consistently ensure that values received from a VNC server will not result in integer overflow. If a user connects to a malicious or compromised VNC server, specially-crafted data could result in memory corruption, possibly allowing arbitrary code to be executed with the privileges of the running guacd process. Users are recommended to upgrade to version 1.5.4, which fixes this issue.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7 (High)
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
0 (None)
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:N
CWE
  • CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0 , ≤ 1.5.3 (semver)
Create a notification for this product.
Credits
Joseph Surin (Elttam) Matt Jones (Elttam)
Show details on NVD website
To clipboard 

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CVE-2023-30576 (GCVE-0-2023-30576)

Vulnerability from nvd – Published: 2023-06-07 08:06 – Updated: 2024-10-10 14:43
VLAI?
Summary
Apache Guacamole 0.9.10 through 1.5.1 may continue to reference a freed RDP audio input buffer. Depending on timing, this may allow an attacker to execute arbitrary code with the privileges of the guacd process.
Severity ?
6.8 (Medium)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0.9.10 , ≤ 1.5.1 (semver)
Create a notification for this product.
Credits
Stefan Schiller (Sonar)
Show details on NVD website
To clipboard 

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CVE-2023-30575 (GCVE-0-2023-30575)

Vulnerability from nvd – Published: 2023-06-07 08:06 – Updated: 2024-10-10 14:39
VLAI?
Summary
Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CWE
  • CWE-131 - Incorrect Calculation of Buffer Size
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 0 , ≤ 1.5.1 (semver)
Create a notification for this product.
Credits
Stefan Schiller (Sonar)
Show details on NVD website
To clipboard 

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CVE-2021-43999 (GCVE-0-2021-43999)

Vulnerability from nvd – Published: 2022-01-11 22:10 – Updated: 2024-08-04 04:10
VLAI?
Summary
Apache Guacamole 1.2.0 and 1.3.0 do not properly validate responses received from a SAML identity provider. If SAML support is enabled, this may allow a malicious user to assume the identity of another Guacamole user.
Severity ?
No CVSS data available.
CWE
  • CWE-287 - Improper Authentication
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: 1.3.0
Affected: 1.2.0
Create a notification for this product.
Credits
We would like to thank Finn Steglich (ETAS) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2021-41767 (GCVE-0-2021-41767)

Vulnerability from nvd – Published: 2022-01-11 22:10 – Updated: 2024-08-04 03:15
VLAI?
Summary
Apache Guacamole 1.3.0 and older may incorrectly include a private tunnel identifier in the non-private details of some REST responses. This may allow an authenticated user who already has permission to access a particular connection to read from or interact with another user's active use of that same connection.
Severity ?
No CVSS data available.
CWE
  • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: unspecified , ≤ 1.3.0 (custom)
Create a notification for this product.
Credits
We would like to thank Damian Velardo (Australia and New Zealand Banking Group) for reporting this issue.
Show details on NVD website
To clipboard 

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CVE-2018-1340 (GCVE-0-2018-1340)

Vulnerability from nvd – Published: 2019-02-07 22:00 – Updated: 2024-09-16 19:20
VLAI?
Summary
Prior to 1.0.0, Apache Guacamole used a cookie for client-side storage of the user's session token. This cookie lacked the "secure" flag, which could allow an attacker eavesdropping on the network to intercept the user's session token if unencrypted HTTP requests are made to the same domain.
Severity ?
No CVSS data available.
CWE
  • Sensitive Cookie in HTTPS Session Without 'Secure' Attribute
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: Apache Guacamole 0.9.4 to 0.9.14
Create a notification for this product.
Show details on NVD website
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CVE-2017-3158 (GCVE-0-2017-3158)

Vulnerability from nvd – Published: 2018-01-18 20:00 – Updated: 2024-09-16 16:37
VLAI?
Summary
A race condition in Guacamole's terminal emulator in versions 0.9.5 through 0.9.10-incubating could allow writes of blocks of printed data to overlap. Such overlapping writes could cause packet data to be misread as the packet length, resulting in the remaining data being written beyond the end of a statically-allocated buffer.
Severity ?
No CVSS data available.
CWE
  • Buffer Overflow
Assigner
References
Impacted products
Vendor Product Version
Apache Software Foundation Apache Guacamole Affected: Apache Guacamole 0.9.5 to 0.9.10-incubating
Create a notification for this product.
Show details on NVD website
To clipboard 

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