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CVE-2022-31531: The dainst/cilantro repository through 0.0.4 on GitHub allows absolute path traversal because the Flask send_f

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CRITICAL 9.3REMOTEUPGRADE

CVE-2022-31531 is a critical-severity flaw (CVSS 9.3) affecting cilantro. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The dainst/cilantro repository through 0.0.4 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.

Why this priority

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

A fixed release or distro patch exists.

Risk facts

CVSS score9.3 (Critical)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededNone
User interactionNone
EPSS exploit chance1.3% (top 29%)
CISA exploited listNo
WeaknessCWE-22
Published2022-07-11
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: dainst

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

Am I affected?

Timeline

dainst cilantro UPGRADE
Affected: <= 0.0.4
Fixed in: newer than 0.0.4
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy cilantro || rpm -q cilantro || cilantro --version
2. UPGRADE to newer than 0.0.4 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade cilantro
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade cilantro
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.

Quick answers

How do I fix CVE-2022-31531?

cilantro: upgrade to newer than 0.0.4. Exact commands for each OS are on this page.

Is CVE-2022-31531 being exploited?

CVE-2022-31531 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-2022-31531 affect?

CVE-2022-31531 affects cilantro. Severity is critical (CVSS 9.3). The dainst/cilantro repository through 0.0.4 on GitHub allows absolute path traversal because the Flask send_file function is used unsafely.

How urgent is CVE-2022-31531?

Priority 60/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities · Flask vulnerabilities

References

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