CVE-2023-2519: A vulnerability has been found in Caton CTP Relay Server 1.2.9 and classified as critical

This month

HIGH 7.3REMOTEDOWNGRADE

CVE-2023-2519 is a high-severity flaw (CVSS 7.3) affecting ctp relay server. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability has been found in Caton CTP Relay Server 1.2.9 and classified as critical. This vulnerability affects unknown code of the file /server/api/v1/login of the component API. The manipulation of the argument username/password leads to sql injection. The attack can be initiated remotely. VDB-228010 is the identifier assigned to this vulnerability. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

Why this priority

High severity
Remotely exploitable, no login, no user action

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

Risk facts

CVSS score	7.3 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.6% (top 50%)
CISA exploited list	No
Weakness	CWE-89
Published	2023-05-04
Last modified	2026-06-17

Publisher (CNA): VulDB · Vendor: catontechnology

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

Am I affected?

Timeline

2023-05-04 17:15 UTCPublished CVE record published
2026-06-17 05:52 UTCUpdated Record last modified

catontechnology ctp relay server DOWNGRADE

Affected: 1.2.9

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.2.9

1. Check installed version

apt-cache policy ctp-relay-server || rpm -q ctp-relay-server || ctp-relay-server --version

2. No fixed release: DOWNGRADE to a release before 1.2.9 (Debian / Ubuntu)

apt-cache madison ctp-relay-server sudo apt install ctp-relay-server=<VERSION_BEFORE_1.2.9> sudo apt-mark hold ctp-relay-server

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

dnf --showduplicates list ctp-relay-server sudo dnf downgrade ctp-relay-server-<VERSION_BEFORE_1.2.9> sudo dnf versionlock add ctp-relay-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-2023-2519?

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

Is CVE-2023-2519 being exploited?

CVE-2023-2519 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-2023-2519 affect?

CVE-2023-2519 affects ctp relay server. Severity is high (CVSS 7.3). A vulnerability has been found in Caton CTP Relay Server 1.2.9 and classified as critical. This vulnerability affects unknown code of the file /server/api/v1/login of the component API. The manipulation of the argument username/password lea

How urgent is CVE-2023-2519?

Priority 43/100. High severity; Remotely exploitable, no login, no user action

References

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