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TI-2020-16297 Aliases CVE-2020-26834GHSA-xwh3-6m65-fmmj

Improper authentication in SAP HANA Database

Priority LOW 26CWE-287Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-287.

Summary

SAP HANA Database, version - 2.0, does not correctly validate the username when performing SAML bearer token-based user authentication. It is possible to manipulate a valid existing SAML bearer token to authenticate as a user whose name is identical to the truncated username for whom the SAML bearer token was issued.

Why it matters now

EPSS 0.00691 53rd percentileScored 2026-11-07
Fix Fixed SAP HANA Database (SAP SE): 2.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
SAPSAP HANA Databasebefore 2.02.0Patch availableCNA
  • SAP HANA Database VendorSAP Affected before 2.0 Fixed in 2.0 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:sap:hana_database:2.00:*:*:*:*:*:*:*2.00VulnerableSAP
  • cpe:2.3:a:sap:hana_database:2.00:*:*:*:*:*:*:* Versions 2.00 Vulnerable ·SAP

Remediation

  • Fix · CNA SAP HANA Database (SAP SE) Fixed in 2.0

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26834
  2. 2026-10-03 Alias added: GHSA-xwh3-6m65-fmmj

References

Advisory 1

Other 1

  • TI-2023-21149 Missing Authorization check in SAP CommonCryptoLib CVSS 3.1CRITICAL 9.8
  • TI-2018-01809 Improper input validation in SAP HANA Database CVSS 3.0CRITICAL 9.8
  • TI-2026-00300 Privilege escalation vulnerability in SAP HANA database CVSS 3.1HIGH 8.8
  • TI-2023-21148 Memory Corruption vulnerability in SAP CommonCryptoLib CVSS 3.1HIGH 7.5
  • TI-2019-00289 SAP HANA Database, versions 1.0, 2.0, allows an unauthorized attacker to send a malformed… CVSS 3.1HIGH 7.5
  • TI-2021-04572 SAP HANA Database, versions - 1.0, 2.0, accepts SAML tokens with MD5 digest, an attacker… CVSS 3.1MEDIUM 6.5
See all 7 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences