PatchTheCVECVE-2022-26136: A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Fil
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This week
CRITICAL 9.8REMOTEUPGRADEUPGRADEUPGRADE
CVE-2022-26136 is a critical-severity flaw (CVSS 9.8) affecting bamboo, bitbucket, confluence data center. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Filters used by first and third party apps. The impact depends on which filters are used by each app, and how the filters are used. This vulnerability can result in authentication bypass and cross-site scripting. Atlassian has released updates that fix the root cause of this vulnerability, but has not exhaustively enumerated all potential co
Why this priority
- Critical severity
- EPSS top 7%: very likely to be exploited
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
atlassian bamboo UPGRADE
Affected: >= 7.2.0 and < 7.2.10 · >= 8.0.0 and < 8.0.9 · >= 8.1.0 and < 8.1.8 · >= 8.2.0 and < 8.2.4
Fixed in: 7.2.10, 8.0.9, 8.1.8, 8.2.4
Safe to downgrade to: a release before 7.2.0
1. Check installed version
apt-cache policy bamboo || rpm -q bamboo || bamboo --version
2. UPGRADE to 7.2.10 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade bamboo
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade bamboo
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.2.0 (Debian / Ubuntu)
apt-cache madison bamboo
sudo apt install bamboo=<VERSION_BEFORE_7.2.0>
sudo apt-mark hold bamboo
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list bamboo
sudo dnf downgrade bamboo-<VERSION_BEFORE_7.2.0>
sudo dnf versionlock add bamboo
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
atlassian bitbucket UPGRADE
Affected: < 7.6.16 · >= 7.7.0 and < 7.17.8 · >= 7.18.0 and < 7.19.5 · >= 7.20.0 and < 7.20.2 · >= 7.21.0 and < 7.21.2 · 8.0.0 · 8.1.0
Fixed in: 7.6.16, 7.17.8, 7.19.5, 7.20.2, 7.21.2
Safe to downgrade to: a release before 7.7.0
1. Check installed version
apt-cache policy bitbucket || rpm -q bitbucket || bitbucket --version
2. UPGRADE to 7.6.16 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade bitbucket
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade bitbucket
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.7.0 (Debian / Ubuntu)
apt-cache madison bitbucket
sudo apt install bitbucket=<VERSION_BEFORE_7.7.0>
sudo apt-mark hold bitbucket
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list bitbucket
sudo dnf downgrade bitbucket-<VERSION_BEFORE_7.7.0>
sudo dnf versionlock add bitbucket
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
atlassian confluence data center UPGRADE
Affected: < 7.4.17 · >= 7.5.0 and < 7.13.7 · >= 7.14.0 and < 7.14.3 · >= 7.15.0 and < 7.15.2 · >= 7.16.0 and < 7.16.4 · >= 7.17.0 and < 7.17.4 · 7.18.0
Fixed in: 7.4.17, 7.13.7, 7.14.3, 7.15.2, 7.16.4, 7.17.4
Safe to downgrade to: a release before 7.5.0
1. Check installed version
apt-cache policy confluence-data-center || rpm -q confluence-data-center || confluence-data-center --version
2. UPGRADE to 7.4.17 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade confluence-data-center
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade confluence-data-center
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.5.0 (Debian / Ubuntu)
apt-cache madison confluence-data-center
sudo apt install confluence-data-center=<VERSION_BEFORE_7.5.0>
sudo apt-mark hold confluence-data-center
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list confluence-data-center
sudo dnf downgrade confluence-data-center-<VERSION_BEFORE_7.5.0>
sudo dnf versionlock add confluence-data-center
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
atlassian confluence server UPGRADE
Affected: < 7.4.17 · >= 7.5.0 and < 7.13.7 · >= 7.14.0 and < 7.14.3 · >= 7.15.0 and < 7.15.2 · >= 7.16.0 and < 7.16.4 · >= 7.17.0 and < 7.17.4 · 7.18.0
Fixed in: 7.4.17, 7.13.7, 7.14.3, 7.15.2, 7.16.4, 7.17.4
Safe to downgrade to: a release before 7.5.0
1. Check installed version
apt-cache policy confluence-server || rpm -q confluence-server || confluence-server --version
2. UPGRADE to 7.4.17 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade confluence-server
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade confluence-server
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 7.5.0 (Debian / Ubuntu)
apt-cache madison confluence-server
sudo apt install confluence-server=<VERSION_BEFORE_7.5.0>
sudo apt-mark hold confluence-server
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list confluence-server
sudo dnf downgrade confluence-server-<VERSION_BEFORE_7.5.0>
sudo dnf versionlock add confluence-server
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
atlassian crowd UPGRADE
Affected: < 4.3.8 · >= 4.4.0 and < 4.4.2 · 5.0.0
Fixed in: 4.3.8, 4.4.2
Safe to downgrade to: a release before 4.4.0
1. Check installed version
apt-cache policy crowd || rpm -q crowd || crowd --version
2. UPGRADE to 4.3.8 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade crowd
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade crowd
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
3. If no update is available yet, DOWNGRADE to a release before 4.4.0 (Debian / Ubuntu)
apt-cache madison crowd
sudo apt install crowd=<VERSION_BEFORE_4.4.0>
sudo apt-mark hold crowd
3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list crowd
sudo dnf downgrade crowd-<VERSION_BEFORE_4.4.0>
sudo dnf versionlock add crowd
Downgrade risk
Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.
After downgrade
Restart the service, and keep the package held until a fixed release ships.
atlassian crucible UPGRADE
Affected: < 4.8.10
Fixed in: 4.8.10
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy crucible || rpm -q crucible || crucible --version
2. UPGRADE to 4.8.10 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade crucible
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade crucible
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2022-26136?
bamboo: upgrade to 7.2.10, 8.0.9, 8.1.8, 8.2.4; bitbucket: upgrade to 7.6.16, 7.17.8, 7.19.5, 7.20.2, 7.21.2; confluence data center: upgrade to 7.4.17, 7.13.7, 7.14.3, 7.15.2, 7.16.4, 7.17.4. Exact commands for each OS are on this page.
Is CVE-2022-26136 being exploited?
CVE-2022-26136 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2022-26136 affect?
CVE-2022-26136 affects bamboo, bitbucket, confluence data center. Severity is critical (CVSS 9.8). A vulnerability in multiple Atlassian products allows a remote, unauthenticated attacker to bypass Servlet Filters used by first and third party apps. The impact depends on which filters are used by each app, and how the filters are used. T
How urgent is CVE-2022-26136?
Priority 63/100. Critical severity; EPSS top 7%: very likely to be exploited; Remotely exploitable, no login, no user action
Software pages
Atlassian Confluence vulnerabilities · Bitbucket vulnerabilities
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