Cyber Resilience

CVE-2026-34264

Sap Human Capital Management s4hcmrxx_100 … sap_hrrxx_608

Published
14 April 2026
Modified
04 May 2026
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0027 19th percentile
Risk Priority 49 floored blend · peak EPSS

Summary

CVE-2026-34264 is a medium-severity Observable Response Discrepancy (CWE-204) vulnerability in Sap Human Capital Management. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Account Discovery (T1087); ranked at the 19th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to IA-6 (Authentication Feedback) and SI-11 (Error Handling) — see the control section below for these in your framework.

EU & UK References

Vulnerability Data

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…

more

of sensitive information causing a high impact on confidentiality, while integrity and availability are unaffected.

CWE(s)
CWE-204

Related Threats

MITRE ATT&CK Enterprise Techniques

T1087 Account Discovery Discovery
Adversaries may attempt to get a listing of valid accounts, usernames, or email addresses on a system or within a compromised environment.
attack.mitre.org →
T1087.001 Local Account Discovery
Adversaries may attempt to get a listing of local system accounts.
attack.mitre.org →
T1087.002 Domain Account Discovery
Adversaries may attempt to get a listing of domain accounts.
attack.mitre.org →
T1087.003 Email Account Discovery
Adversaries may attempt to get a listing of email addresses and accounts.
attack.mitre.org →
T1087.004 Cloud Account Discovery
Adversaries may attempt to get a listing of cloud accounts.
attack.mitre.org →
T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-23193Same vendor: Sap
CVE-2023-42475Same product: Sap S\/4Hana
CVE-2023-42473Same product: Sap S\/4Hana
CVE-2023-49577Same product: Sap Human Capital Management
CVE-2023-40306Same product: Sap S\/4Hana
CVE-2023-24524Same product: Sap S\/4Hana
CVE-2024-37172Same product: Sap S\/4Hana
CVE-2026-27679Same product: Sap S\/4Hana
CVE-2025-3092Shared CWE-204
CVE-2025-54129Shared CWE-204

Affected Assets

sap
human capital management
s4hcmrxx_100, s4hcmrxx_101, s4hcmrxx_102, sap_hrrxx_600, sap_hrrxx_604

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V13.4.5

Mitigating Controls (NIST 800-53 r5) AI

IA-6 Authentication Feedback good match

Obscuring authentication feedback directly stops one common source of observable response discrepancies.

SI-11 Error Handling good match

Error handling explicitly requires messages that avoid revealing exploitable internal information.

AC-4 Information Flow Enforcement partial match

Information flow enforcement can block responses that would otherwise disclose internal state to unauthorized parties.

SC-7 Boundary Protection partial match

Boundary protection monitors and filters outbound responses that could leak internal state.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 full match
prevents

Secure SDLC practices directly prevent introduction of inconsistent response behavior that leaks internal state.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing can detect observable response discrepancies before deployment.

A.8.20 Networks security partial match
mitigates

Network security controls can enforce uniform responses and suppress observable discrepancies.

A.8.25 Secure development life cycle partial match
prevents

Secure SDLC practices include error-handling and response standardization to avoid information disclosure.

A.8.26 Application security requirements partial match
prevents

Application security requirements typically mandate consistent, non-revealing error messages.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles discourage designs that leak internal state via differing responses.

A.8.28 Secure coding partial match
prevents

Secure coding standards explicitly require uniform error handling to prevent information leakage.

References