Adobe Commerce CVE-2026-77109

No special conditions required for the authorization bypass itself: the CVSS vector AV:N/AC:L/PR:N/UI:N confirms remote unauthenticated exploitation against network-accessible Adobe Commerce instances running any of the affected version lines (Commerce 2.4.4-2.4.9, Magento Open Source 2.4.6-2.4.9, Commerce B2B 1.3.3-1.5.3) without requiring any account, configuration flag, or user interaction. The only limiting factor is that the Commerce storefront must be network-reachable; instances behind strict internal-network controls or VPNs reduce exposure. The specific endpoint or feature path targeted by the authorization bypass is not disclosed in available intelligence - consult APSB26-138 for details that may further scope the attack surface.

The risk profile is elevated and merits prompt patching. CVSS 8.6 is well-supported by the vector: network-reachable (AV:N), no complexity barrier (AC:L), no prior privileges required (PR:N), no user interaction (UI:N), and scope change (S:C) with high integrity impact (I:H). SSVC corroborates severity with 'automatable: yes' and 'technical impact: total,' indicating the flaw can be systematically exploited at scale with no manual steps per target. However, SSVC also records 'exploitation: none,' aligning with the absence of a CISA KEV entry and no public exploit code identified at time of analysis. EPSS data is not provided, so probability of near-term exploitation cannot be quantified from this dataset. The key tension is between high CVSS/SSVC severity and lack of confirmed or public exploitation - Adobe Commerce is a high-value target in e-commerce environments (payment data, order management, admin credential access), making this a priority even at zero confirmed exploitation. The C:N metric (no confidentiality impact) is noteworthy: Adobe has scoped the impact to integrity/access control only, suggesting the exploitation path modifies or accesses restricted write-operations rather than exfiltrating stored data. This could be conservative; privilege escalation in an e-commerce admin context often implies some data read capability. Verify with Adobe's APSB26-138 bulletin for specific affected endpoints.

An unauthenticated attacker sends a crafted HTTP request to a vulnerable Adobe Commerce or Magento endpoint, bypassing the platform's authorization check to exercise a privilege-restricted action - such as modifying store configuration, creating admin accounts, or altering order/inventory data. No user interaction or prior account is required. Given SSVC automatable classification, this attack could be scripted for mass scanning and exploitation across publicly reachable Commerce storefronts. No public exploit code has been identified at time of analysis.