CVE-2026-66766: CWE-1333: Inefficient Regular Expression Complexity in SAP_SE SAP S/4HANA (Manage Supply Protection)
CVE-2026-66766 is a Regular Expression Denial of Service (ReDoS) vulnerability in SAP S/4HANA (Manage Supply Protection) version 900. An unauthenticated attacker can supply crafted input that causes excessive processing, leading to resource exhaustion and service unavailability. The vulnerability impacts availability but does not affect confidentiality or integrity. The CVSS score is 7.5, indicating high severity. No official patch or remediation guidance is currently available.
AI Analysis
Technical Summary
SAP S/4HANA (Private Cloud) version 900 includes a third-party component vulnerable to a Regular Expression Denial of Service (ReDoS) attack (CWE-1333). This vulnerability allows an unauthenticated attacker to provide specially crafted input that triggers excessive regular expression processing, exhausting system resources and causing denial of service. The vulnerability affects availability only, with no confidentiality or integrity impact. No known exploits are reported in the wild, and no vendor remediation level or patch information is provided at this time.
Potential Impact
Successful exploitation results in denial of service by exhausting system resources, causing the SAP S/4HANA service to become unavailable. There is no impact on confidentiality or integrity of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor for unusual resource consumption related to the affected functionality and consider applying any recommended workarounds from SAP once published.
CVE-2026-66766: CWE-1333: Inefficient Regular Expression Complexity in SAP_SE SAP S/4HANA (Manage Supply Protection)
Description
CVE-2026-66766 is a Regular Expression Denial of Service (ReDoS) vulnerability in SAP S/4HANA (Manage Supply Protection) version 900. An unauthenticated attacker can supply crafted input that causes excessive processing, leading to resource exhaustion and service unavailability. The vulnerability impacts availability but does not affect confidentiality or integrity. The CVSS score is 7.5, indicating high severity. No official patch or remediation guidance is currently available.
CVSS v3.1
Score 7.5high
Affected software
pkg:github/sap_se/SAP_S4HANA_Manage_Supply_ProtectionRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
SAP S/4HANA (Private Cloud) version 900 includes a third-party component vulnerable to a Regular Expression Denial of Service (ReDoS) attack (CWE-1333). This vulnerability allows an unauthenticated attacker to provide specially crafted input that triggers excessive regular expression processing, exhausting system resources and causing denial of service. The vulnerability affects availability only, with no confidentiality or integrity impact. No known exploits are reported in the wild, and no vendor remediation level or patch information is provided at this time.
Potential Impact
Successful exploitation results in denial of service by exhausting system resources, causing the SAP S/4HANA service to become unavailable. There is no impact on confidentiality or integrity of the system.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is available, monitor for unusual resource consumption related to the affected functionality and consider applying any recommended workarounds from SAP once published.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- sap
- Date Reserved
- 2026-07-27T17:33:40.733Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8cee65acd9273b497cae40
Added to database: 08/25/2026, 01:22:45 UTC
Last enriched: 08/25/2026, 01:37:05 UTC
Last updated: 08/25/2026, 02:39:46 UTC
Views: 5
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