CVE-2023-26546: European Chemicals Agency IUCLID before 6.27.6 allows remote authenticated users to execute arbitrary code via

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HIGH 8.8UPGRADE

CVE-2023-26546 is a high-severity flaw (CVSS 8.8) affecting iuclid. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

European Chemicals Agency IUCLID before 6.27.6 allows remote authenticated users to execute arbitrary code via Server Side Template Injection (SSTI) with a crafted template file. The attacker must have template manager permission.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	8.8 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.4% (top 27%)
CISA exploited list	No
Weakness	CWE-94
Published	2023-05-02
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: echa.europa

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

Am I affected?

Timeline

2023-05-02 20:15 UTCPublished CVE record published
2026-06-17 05:43 UTCUpdated Record last modified

echa.europa iuclid UPGRADE

Affected: >= 5.15.0 and < 6.27.6

Fixed in: 6.27.6

Safe to downgrade to: a release before 5.15.0

1. Check installed version

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

2. UPGRADE to 6.27.6 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade iuclid

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 5.15.0 (Debian / Ubuntu)

apt-cache madison iuclid sudo apt install iuclid=<VERSION_BEFORE_5.15.0> sudo apt-mark hold iuclid

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

dnf --showduplicates list iuclid sudo dnf downgrade iuclid-<VERSION_BEFORE_5.15.0> sudo dnf versionlock add iuclid

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-2023-26546?

iuclid: upgrade to 6.27.6. Exact commands for each OS are on this page.

Is CVE-2023-26546 being exploited?

CVE-2023-26546 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-2023-26546 affect?

CVE-2023-26546 affects iuclid. Severity is high (CVSS 8.8). European Chemicals Agency IUCLID before 6.27.6 allows remote authenticated users to execute arbitrary code via Server Side Template Injection (SSTI) with a crafted template file. The attacker must have template manager permission.

How urgent is CVE-2023-26546?

Priority 49/100. High severity

Related CVEs

CVE-2024-0770 MEDIUM 4.4 DOWNGRADE A vulnerability, which was classified as critical, was found in European Chemicals Agency IUCLID 7.10.3 on Win
CVE-2023-26089 CRITICAL 9.8 UPGRADE European Chemicals Agency IUCLID 6.x before 6.27.6 allows authentication bypass because a weak hard-coded secr

References

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