CVE-2021-36388: In Yellowfin before 9.6.1 it is possible to enumerate and download users profile pictures through an Insecure

Q: How do I fix CVE-2021-36388?

yellowfin: upgrade to 9.6.1. Exact commands for each OS are on this page.

Q: Is CVE-2021-36388 being exploited?

CVE-2021-36388 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2021-36388 affect?

CVE-2021-36388 affects yellowfin. Severity is high (CVSS 7.5). In Yellowfin before 9.6.1 it is possible to enumerate and download users profile pictures through an Insecure Direct Object Reference vulnerability exploitable by sending a specially crafted HTTP GET request to the page "MIIAvatarImage.i4".

Q: How urgent is CVE-2021-36388?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

This month

HIGH 7.5REMOTEUPGRADE

CVE-2021-36388 is a high-severity flaw (CVSS 7.5) affecting yellowfin. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In Yellowfin before 9.6.1 it is possible to enumerate and download users profile pictures through an Insecure Direct Object Reference vulnerability exploitable by sending a specially crafted HTTP GET request to the page "MIIAvatarImage.i4".

Why this priority

High severity
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	3.2% (top 12%)
CISA exploited list	No
Weakness	CWE-639
Published	2021-10-14
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: yellowfinbi

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

Am I affected?

Timeline

2021-10-14 19:15 UTCPublished CVE record published
2026-06-17 03:58 UTCUpdated Record last modified

yellowfinbi yellowfin UPGRADE

Affected: < 9.6.1

Fixed in: 9.6.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 9.6.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade yellowfin

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-2021-36388?

yellowfin: upgrade to 9.6.1. Exact commands for each OS are on this page.

Is CVE-2021-36388 being exploited?

CVE-2021-36388 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-2021-36388 affect?

CVE-2021-36388 affects yellowfin. Severity is high (CVSS 7.5). In Yellowfin before 9.6.1 it is possible to enumerate and download users profile pictures through an Insecure Direct Object Reference vulnerability exploitable by sending a specially crafted HTTP GET request to the page "MIIAvatarImage.i4".

How urgent is CVE-2021-36388?

Priority 53/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

CVE-2021-36389 HIGH 7.5 UPGRADE In Yellowfin before 9.6.1 it is possible to enumerate and download uploaded images through an Insecure Direct
CVE-2021-36387 MEDIUM 5.4 UPGRADE In Yellowfin before 9.6.1 there is a Stored Cross-Site Scripting vulnerability in the video embed functionalit

References

← Back to latest CVEs