CVE-2021-42192: Konga v0.14.9 is affected by an incorrect access control vulnerability where a specially crafted request can l

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HIGH 8.8DOWNGRADE

CVE-2021-42192 is a high-severity flaw (CVSS 8.8) affecting konga. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Konga v0.14.9 is affected by an incorrect access control vulnerability where a specially crafted request can lead to privilege escalation.

Why this priority

High severity
EPSS top 4%: very likely to be exploited
Public exploit reference

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

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	9.8% (top 4%)
CISA exploited list	No
Weakness	CWE-863
Published	2022-05-04
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: konga project

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

Am I affected?

Timeline

2022-05-04 11:15 UTCPublished CVE record published
2026-06-17 04:09 UTCUpdated Record last modified

konga project konga DOWNGRADE

Affected: 0.14.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.14.9

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 0.14.9 (Debian / Ubuntu)

apt-cache madison konga sudo apt install konga=<VERSION_BEFORE_0.14.9> sudo apt-mark hold konga

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

dnf --showduplicates list konga sudo dnf downgrade konga-<VERSION_BEFORE_0.14.9> sudo dnf versionlock add konga

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.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Nuclei scan template: KONGA 0.14.9 - Privilege Escalation

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-2021-42192?

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

Is CVE-2021-42192 being exploited?

CVE-2021-42192 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-2021-42192 affect?

CVE-2021-42192 affects konga. Severity is high (CVSS 8.8). Konga v0.14.9 is affected by an incorrect access control vulnerability where a specially crafted request can lead to privilege escalation.

How urgent is CVE-2021-42192?

Priority 60/100. High severity; EPSS top 4%: very likely to be exploited; Public exploit reference

Related CVEs

CVE-2024-34243 MEDIUM 5.4 DOWNGRADE Konga v0.14.9 is vulnerable to Cross Site Scripting (XSS) via the username parameter.
CVE-2023-39846 CRITICAL 9.8 DOWNGRADE An issue in Konga v0.14.9 allows attackers to bypass authentication via a crafted JWT token.

References

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