CVE-2026-66766Patch

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

SAP S/4HANA (Private Cloud) uses a third-party component that contains a Regular Expression Denial of Service (ReDoS) vulnerability. An unauthenticated attacker could supply specially crafted input that triggers excessive processing within the affected functionality. Successful exploitation could exhaust system resources and make the service unavailable, resulting in a high impact on availability. There is no impact on confidentiality and integrity.

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0.5/ 10 priority

Sources & remediation

Other references

Weakness type (CWE)

CWE-1333

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

Patch or workaround signal is available
1 mentions across 1 observed day

What's happening

Patch or workaround mentioned in 1 signal
Technical details provided in 1 signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

Patch

1100.0%

Full discourse1 post

DFIR Lab@DFIR_Lab46d
Patch
🚨 HIGH SEVERITY: CVE-2026-66766 (CVSS 7.5) SAP S/4HANA Private Cloud vulnerable to ReDoS attack via third-party component. Unauthenticated attackers can cause service unavailability. Patch immediately! #CVE #Vulnerability #PatchNow #ThreatIntel #DFIR https://t.co/MkoQpz17Mo
Post summary
The tweet alerts that SAP S/4HANA Private Cloud is vulnerable to a ReDoS attack through a third‑party component and urges immediate patching to prevent service outages.
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115 followersView on X

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