CVE-2026-34264: During authorization checks in SAP Human Capital Management for SAP S/4HANA, the system returns specific messa

Routine

MEDIUM 6.5DOWNGRADE

CVE-2026-34264 is a medium-severity flaw (CVSS 6.5) affecting human capital management. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

During authorization checks in SAP Human Capital Management for SAP S/4HANA, the system returns specific messages. Due to this, an authenticated user with low privileges could guess and enumerate the content shown, beyond their authorized scope. This leads to disclosure of sensitive information causing a high impact on confidentiality, while integrity and availability are unaffected.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 81%)
CISA exploited list	No
Weakness	CWE-204
Published	2026-04-14
Last modified	2026-10-26

Publisher (CNA): SAP SE · Vendor: sap

Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-04-14 01:16 UTCPublished CVE record published
2026-10-26 22:10 UTCUpdated Record last modified

sap human capital management DOWNGRADE

Affected: s4hcmrxx_100 · s4hcmrxx_101 · s4hcmrxx_102 · sap_hrrxx_600 · sap_hrrxx_604 · sap_hrrxx_608

Fixed in: no fixed release known

Safe to downgrade to: a release before s4hcmrxx_100

1. Check installed version

apt-cache policy human-capital-management || rpm -q human-capital-management || human-capital-management --version

2. No fixed release: DOWNGRADE to a release before s4hcmrxx_100 (Debian / Ubuntu)

apt-cache madison human-capital-management sudo apt install human-capital-management=<VERSION_BEFORE_s4hcmrxx_100> sudo apt-mark hold human-capital-management

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

dnf --showduplicates list human-capital-management sudo dnf downgrade human-capital-management-<VERSION_BEFORE_s4hcmrxx_100> sudo dnf versionlock add human-capital-management

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-2026-34264?

human capital management: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-34264 being exploited?

CVE-2026-34264 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-2026-34264 affect?

CVE-2026-34264 affects human capital management. Severity is medium (CVSS 6.5). During authorization checks in SAP Human Capital Management for SAP S/4HANA, the system returns specific messages. Due to this, an authenticated user with low privileges could guess and enumerate the content shown, beyond their authorized s

How urgent is CVE-2026-34264?

Priority 27/100. No elevated risk signals yet.

Software pages

SAP vulnerabilities

References

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