CVE-2023-49930: An issue was discovered in Couchbase Server before 7.2.4

This month

CRITICAL 9.8REMOTEUPGRADE

CVE-2023-49930 is a critical-severity flaw (CVSS 9.8) affecting couchbase server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in Couchbase Server before 7.2.4. cURL calls to /diag/eval are not sufficiently restricted.

Why this priority

Critical severity
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.9% (top 40%)
CISA exploited list	No
Weakness	CWE-284
Published	2024-02-29
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: couchbase

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

Am I affected?

Timeline

2024-02-29 01:41 UTCPublished CVE record published
2026-06-17 06:36 UTCUpdated Record last modified

couchbase couchbase server UPGRADE

Affected: >= 7.1.5 and < 7.2.4

Fixed in: 7.2.4

Safe to downgrade to: a release before 7.1.5

1. Check installed version

apt-cache policy couchbase-server || rpm -q couchbase-server || couchbase-server --version

2. UPGRADE to 7.2.4 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade couchbase-server

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade couchbase-server

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 7.1.5 (Debian / Ubuntu)

apt-cache madison couchbase-server sudo apt install couchbase-server=<VERSION_BEFORE_7.1.5> sudo apt-mark hold couchbase-server

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

dnf --showduplicates list couchbase-server sudo dnf downgrade couchbase-server-<VERSION_BEFORE_7.1.5> sudo dnf versionlock add couchbase-server

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-2023-49930?

couchbase server: upgrade to 7.2.4. Exact commands for each OS are on this page.

Is CVE-2023-49930 being exploited?

CVE-2023-49930 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-2023-49930 affect?

CVE-2023-49930 affects couchbase server. Severity is critical (CVSS 9.8). An issue was discovered in Couchbase Server before 7.2.4. cURL calls to /diag/eval are not sufficiently restricted.

How urgent is CVE-2023-49930?

Priority 54/100. Critical severity; Remotely exploitable, no login, no user action

Software pages

curl vulnerabilities

Related CVEs

CVE-2025-46619 HIGH 7.6 UPGRADE A security issue has been discovered in Couchbase Server before 7.6.4 and fixed in v.7.6.4 and v.7.2.7 for Win
CVE-2024-56178 MEDIUM 6.5 UPGRADE An issue was discovered in Couchbase Server 7.6.x through 7.6.3
CVE-2024-37034 MEDIUM 5.9 UPGRADE An issue was discovered in Couchbase Server before 7.2.5 and 7.6.0 before 7.6.1
CVE-2024-25673 MEDIUM 6.1 UPGRADE Couchbase Server 7.6.x before 7.6.2, 7.2.x before 7.2.6, and all earlier versions allows HTTP Host header inje
CVE-2024-23302 HIGH 7.5 UPGRADE Couchbase Server before 7.2.4 has a private key leak in goxdcr.log.

References

← Back to latest CVEs