CVE-2023-26141: Versions of the package sidekiq before 7.1.3 are vulnerable to Denial of Service (DoS) due to insufficient che

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HIGH 7.5REMOTEUPGRADE

CVE-2023-26141 is a high-severity flaw (CVSS 7.5) affecting sidekiq. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Versions of the package sidekiq before 7.1.3 are vulnerable to Denial of Service (DoS) due to insufficient checks in the dashboard-charts.js file. An attacker can exploit this vulnerability by manipulating the localStorage value which will cause excessive polling requests.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 39%)
CISA exploited list	No
Weakness	CWE-400, CWE-345
Published	2023-09-14
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: contribsys

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2023-09-14 05:15 UTCPublished CVE record published
2026-06-17 05:42 UTCUpdated Record last modified

contribsys sidekiq UPGRADE

Affected: < 6.5.10 · >= 7.0 and < 7.1.3

Fixed in: 6.5.10, 7.1.3

Safe to downgrade to: a release before 7.0

1. Check installed version

apt-cache policy sidekiq || rpm -q sidekiq || sidekiq --version

2. UPGRADE to 6.5.10 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade sidekiq

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade sidekiq

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 7.0 (Debian / Ubuntu)

apt-cache madison sidekiq sudo apt install sidekiq=<VERSION_BEFORE_7.0> sudo apt-mark hold sidekiq

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list sidekiq sudo dnf downgrade sidekiq-<VERSION_BEFORE_7.0> sudo dnf versionlock add sidekiq

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.

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.

Quick answers

How do I fix CVE-2023-26141?

sidekiq: upgrade to 6.5.10, 7.1.3. Exact commands for each OS are on this page.

Is CVE-2023-26141 being exploited?

CVE-2023-26141 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-2023-26141 affect?

CVE-2023-26141 affects sidekiq. Severity is high (CVSS 7.5). Versions of the package sidekiq before 7.1.3 are vulnerable to Denial of Service (DoS) due to insufficient checks in the dashboard-charts.js file. An attacker can exploit this vulnerability by manipulating the localStorage value which will

How urgent is CVE-2023-26141?

Priority 51/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-46951 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in Contribsys Sidekiq v.6.5.8 allows a remote attacker to obtain sensitive
CVE-2023-46950 MEDIUM 6.1 DOWNGRADE Cross Site Scripting vulnerability in Contribsys Sidekiq v.6.5.8 allows a remote attacker to obtain sensitive

References

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