CVE-2020-26834: sap_se sap hana database Improper Authentication
Vulnerability summary
CVE-2020-26834 is a medium (CVSS 5.5) Improper Authentication vulnerability in sap_se sap hana database. EPSS estimates a 0.69% chance of exploitation in the next 30 days, higher than 52.2% of scored vulnerabilities.
Timeline
- 09-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
4 scores · 2 sources · 3 versions- NVDNIST4.2MediumCVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
EPSS trend
Probability
0.69%
Chance of exploitation in the next 30 days
Percentile
52%
Versus all other CVEs
30-day change
0.00 pp
From 0.69% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Sap1 product
- hana_database2.00
Sap_se1 product
- sap hana database< 2.0
2 vendors · 2 products