CVE-2023-28867: In GraphQL Java (aka graphql-java) before 20.1, an attacker can send a crafted GraphQL query that causes stack

This month

HIGH 7.5REMOTEUPGRADE

CVE-2023-28867 is a high-severity flaw (CVSS 7.5) affecting graphql-java. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

In GraphQL Java (aka graphql-java) before 20.1, an attacker can send a crafted GraphQL query that causes stack consumption. The fixed versions are 20.1, 19.4, 18.4, 17.5, and 0.0.0-2023-03-20T01-49-44-80e3135.

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	1.1% (top 36%)
CISA exploited list	No
Weakness	CWE-770
Published	2023-03-27
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: graphql-java

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

Am I affected?

Timeline

2023-03-27 01:15 UTCPublished CVE record published
2026-06-17 05:48 UTCUpdated Record last modified

graphql-java graphql-java UPGRADE

Affected: < 17.5 · >= 18.0 and < 18.4 · >= 19.0 and < 19.4 · 20.0

Fixed in: 17.5, 18.4, 19.4

Safe to downgrade to: a release before 18.0

1. Check installed version

apt-cache policy graphql-java || rpm -q graphql-java || graphql-java --version

2. UPGRADE to 17.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade graphql-java

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade graphql-java

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 18.0 (Debian / Ubuntu)

apt-cache madison graphql-java sudo apt install graphql-java=<VERSION_BEFORE_18.0> sudo apt-mark hold graphql-java

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

dnf --showduplicates list graphql-java sudo dnf downgrade graphql-java-<VERSION_BEFORE_18.0> sudo dnf versionlock add graphql-java

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-2023-28867?

graphql-java: upgrade to 17.5, 18.4, 19.4. Exact commands for each OS are on this page.

Is CVE-2023-28867 being exploited?

CVE-2023-28867 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-2023-28867 affect?

CVE-2023-28867 affects graphql-java. Severity is high (CVSS 7.5). In GraphQL Java (aka graphql-java) before 20.1, an attacker can send a crafted GraphQL query that causes stack consumption. The fixed versions are 20.1, 19.4, 18.4, 17.5, and 0.0.0-2023-03-20T01-49-44-80e3135.

How urgent is CVE-2023-28867?

Priority 47/100. High severity; Remotely exploitable, no login, no user action

Software pages

Java vulnerabilities

Related CVEs

CVE-2022-37734 HIGH 7.5 UPGRADE UPGRADE graphql-java before19.0 is vulnerable to Denial of Service

References

← Back to latest CVEs