SB2026091634 - Multiple vulnerabilities in Bamboo Data Center

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Main Vulnerability Database SB2026091634

SB2026091634 - Multiple vulnerabilities in Bamboo Data Center

Published: September 16, 2026

Security Bulletin ID SB2026091634
CSH Severity
High
Patch available
YES
Number of vulnerabilities 7
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 29% Medium 71%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 7 vulnerabilities.


1) Resource exhaustion (CVE-ID: CVE-2026-73507)

CWE-ID: CWE-400 - Resource exhaustion

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources in XmlFrameDecoder. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


2) Memory leak (CVE-ID: CVE-2026-68763)

CWE-ID: CWE-401 - Missing release of memory after effective lifetime

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to an allocation leak in HTTP/2 backlog tracking when processing a reset stream. A remote attacker can reset a stream to cause a denial of service.


3) Always-Incorrect Control Flow Implementation (CVE-ID: CVE-2026-53404)

CWE-ID: CWE-670 - Always-Incorrect Control Flow Implementation

CVSSv4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass rewrite conditions.

The vulnerability exists due to logic errors in RewriteValve when processing requests against OR-chained rewrite conditions. A remote attacker can send a request that matches the first OR condition to bypass rewrite conditions.

Exploitation requires a rule set that uses an OR chain followed by non-OR conditions.


4) Input validation error (CVE-ID: CVE-2026-75595)

CWE-ID: CWE-20 - Improper input validation

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to bypass mTLS requirements.

The vulnerability exists due to an incorrect offset check in io.netty.handler.ssl.SslClientHelloHandler#decode when parsing a fragmented TLS ClientHello whose handshake header spans multiple records. A remote attacker can send a specially crafted fragmented TLS ClientHello to bypass mTLS requirements.

This issue affects deployments where per-SNI SslContext selection is the only mTLS gate, the default SslContext is permissive, and no secondary peer-certificate verification exists at the application layer.


5) Deserialization of Untrusted Data (CVE-ID: CVE-2026-54512)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to instantiate arbitrary classes.

The vulnerability exists due to deserialization of untrusted data in DatabindContext._resolveAndValidateGeneric() and PolymorphicTypeValidator handling when processing polymorphic type identifiers with generic parameters during deserialization. A remote attacker can supply a specially crafted type identifier and JSON data to instantiate arbitrary classes.

Only applications that accept untrusted JSON and have polymorphic typing enabled while relying on a configured PolymorphicTypeValidator allow-list are affected.


6) Incomplete List of Disallowed Inputs (CVE-ID: CVE-2026-54513)

CWE-ID: CWE-184 - Incomplete List of Disallowed Inputs

CVSSv4: 9.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to instantiate non-allowlisted types.

The vulnerability exists due to incomplete list of disallowed inputs in BasicPolymorphicTypeValidator.Builder.allowIfSubTypeIsArray() when deserializing attacker-controlled JSON containing array subtypes. A remote attacker can supply a crafted array wrapper to instantiate non-allowlisted types.

The issue occurs because array types are allowlisted based only on whether the class is an array, without validating the array component type against the configured allowlist, and no further validator check occurs for elements when per-element type IDs are absent.


7) Path traversal (CVE-ID: CVE-2026-73646)

CWE-ID: CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSSv4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]


The vulnerability allows a remote attacker to perform directory traversal attacks.

The vulnerability exists due to input validation error when processing directory traversal sequences in lib/previous-map.js. A remote attacker can send a specially crafted HTTP request and read arbitrary files on the system.


Remediation

Install update from vendor's website.

References