CVE-2024-40686: IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable

Routine

MEDIUM 5.4DOWNGRADE

CVE-2024-40686 is a medium-severity flaw (CVSS 5.4) affecting smartcloud analytics log analysis. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct various attacks against the vulnerable system, including cross-site scripting, cache poisoning or session hijacking.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-644
Published	2025-07-23
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

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

Am I affected?

Timeline

2025-07-23 12:15 UTCPublished CVE record published
2026-06-17 07:46 UTCUpdated Record last modified

ibm smartcloud analytics log analysis DOWNGRADE

Affected: 1.3.7.0 · 1.3.7.1 · 1.3.7.2 · 1.3.8.0 · 1.3.8.1 · 1.3.8.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 1.3.7.0

1. Check installed version

apt-cache policy smartcloud-analytics-log-analysis || rpm -q smartcloud-analytics-log-analysis || smartcloud-analytics-log-analysis --version

2. No fixed release: DOWNGRADE to a release before 1.3.7.0 (Debian / Ubuntu)

apt-cache madison smartcloud-analytics-log-analysis sudo apt install smartcloud-analytics-log-analysis=<VERSION_BEFORE_1.3.7.0> sudo apt-mark hold smartcloud-analytics-log-analysis

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

dnf --showduplicates list smartcloud-analytics-log-analysis sudo dnf downgrade smartcloud-analytics-log-analysis-<VERSION_BEFORE_1.3.7.0> sudo dnf versionlock add smartcloud-analytics-log-analysis

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-2024-40686?

smartcloud analytics log analysis: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2024-40686 being exploited?

CVE-2024-40686 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-2024-40686 affect?

CVE-2024-40686 affects smartcloud analytics log analysis. Severity is medium (CVSS 5.4). IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 is vulnerable to HTTP header injection, caused by improper validation of input by the HOST headers. This could allow an attacker to conduct var

How urgent is CVE-2024-40686?

Priority 22/100. No elevated risk signals yet.

Related CVEs

CVE-2024-41751 MEDIUM 5.5 DOWNGRADE IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a
CVE-2024-41750 MEDIUM 5.5 DOWNGRADE IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a
CVE-2024-40682 MEDIUM 6.2 DOWNGRADE IBM SmartCloud Analytics - Log Analysis 1.3.7.0, 1.3.7.1, 1.3.7.2, 1.3.8.0, 1.3.8.1, and 1.3.8.2 could allow a

References

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