CVE-2023-26770: TaskCafe 0.3.2 lacks validation in the Cookie value

This week

CRITICAL 9.8REMOTEDOWNGRADE

CVE-2023-26770 is a critical-severity flaw (CVSS 9.8) affecting taskcafe. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

TaskCafe 0.3.2 lacks validation in the Cookie value. Any unauthenticated attacker who knows a registered UserID can change the password of that user.

Why this priority

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

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-284
Published	2024-10-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: taskcafe project

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

Am I affected?

Timeline

2024-10-04 19:15 UTCPublished CVE record published
2026-06-17 05:43 UTCUpdated Record last modified

taskcafe project taskcafe DOWNGRADE

Affected: 0.3.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.3.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.3.2 (Debian / Ubuntu)

apt-cache madison taskcafe sudo apt install taskcafe=<VERSION_BEFORE_0.3.2> sudo apt-mark hold taskcafe

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list taskcafe sudo dnf downgrade taskcafe-<VERSION_BEFORE_0.3.2> sudo dnf versionlock add taskcafe

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-2023-26770?

taskcafe: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2023-26770 being exploited?

CVE-2023-26770 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-2023-26770 affect?

CVE-2023-26770 affects taskcafe. Severity is critical (CVSS 9.8). TaskCafe 0.3.2 lacks validation in the Cookie value. Any unauthenticated attacker who knows a registered UserID can change the password of that user.

How urgent is CVE-2023-26770?

Priority 58/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Related CVEs

CVE-2023-26771 MEDIUM 6.5 DOWNGRADE Taskcafe 0.3.2 is vulnerable to Cross Site Scripting (XSS)

References

← Back to latest CVEs