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Type:
Public Security Vulnerability
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Resolution: Fixed
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Priority:
High
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Affects Version/s: 10.2.0, 11.0.0, 10.2.1, 10.2.2, 10.2.3, 12.0.0, 10.2.4, 11.0.1, 10.2.5, 11.0.2, 11.0.3, 10.2.6, 10.2.7, 11.0.4, 12.1.0, 10.2.8, 11.0.5, 10.2.9, 11.0.7, 11.0.8, 10.2.10, 10.2.11, 12.0.1, 12.0.2, 10.2.12, 12.1.1, 10.2.13, 10.2.14, 10.2.15, 12.1.2, 12.1.3, 10.2.16, 10.2.18, 11.1.0, 12.1.6, 12.1.7, 10.2.19, 12.1.8, 10.2.17, 10.2.20, 10.2.21, 12.1.9, 12.1.10, 10.2.22, 12.1.4, 12.1.5, 10.2.23, 12.1.11
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Component/s: None
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7.5
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High
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CVE-2026-93491
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Atlassian (Internal)
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CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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DoS (Denial of Service)
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Bamboo Data Center
This High severity DoS (Denial of Service) vulnerability was introduced in versions 10.2.0, 11.0.0, 12.0.0 and 12.1.0 of Bamboo Data Center.
This DoS (Denial of Service) vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to expose assets in your environment susceptible to exploitation, which has no impact to confidentiality, no impact to integrity, high impact to availability, and requires no user interaction.
Atlassian recommends that Bamboo Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
- Bamboo Data Center 12.1: Upgrade to a release greater than or equal to 12.1.12
- Bamboo Data Center 10.2: Upgrade to a release greater than or equal to 10.2.24
See the release notes (https://confluence.atlassian.com/bambooreleases/bamboo-release-notes-1189793869.html). You can
download the latest version of Bamboo Data Center from the download center
(https://www.atlassian.com/software/bamboo/download-archives).
The National Vulnerability Database provides the following description for this vulnerability:
A flaw was found in Netty's HttpServerCodec. A remote, unauthenticated attacker can exploit this vulnerability by pipelining HTTP/1.1 requests on a single connection and withholding reads. This action causes the methodOverflowQueue to grow without limit, leading to unbounded heap memory consumption and a denial of service due to memory exhaustion.