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Vahagn Vardanian

Co-founder and CTO of RedRays

SAP Security Patch Day November 2026

SAP Security Patch Day November 2026 — RedRays

SAP Security Patch Day November 2026 · 10 November 2026 · RedRays

November is a heavy month. SAP released 38 security notes on Patch Day, nine of them HotNews, and four of those score the maximum CVSS 10.0. None of the four needs credentials: a SAML2 signature bypass in AS ABAP, a weakness in SAP Gateway’s default access control list, and a WebSocket heap overflow that hits both SAP Web Dispatcher and the ABAP ICM. For the SAP Security Patch Day November 2026, most of the critical fixes are in the kernel, so the practical answer for many landscapes is one well-planned kernel and Web Dispatcher rollout.

Our review of SAP for Me on 10 November found 38 notes with that release date: nine HotNews, thirteen High, fifteen Medium and one Low. Thirty-five are new and three are revisions of older notes. Since the October Patch Day, SAP also published two out-of-band HotNews for SAP BTP runtimes (PHP and Node.js) and revised three existing notes. The table below lists all of them.

SAP Security Patch Day November 2026: the CVSS 10.0 issues to assess first

AS ABAP SAML2 — Note 3849308, CVE-2026-120017. Under certain configurations the SAML2 service provider did not verify signatures on incoming assertions, so an attacker could forge a response and log on as any user, administrators included. Therefore, check every Fiori or Web GUI system with SAML SSO. There is no workaround.

SAP Gateway — Note 3798345, CVE-2026-89103. The default ACL could classify an external attacker as an internal application server, which opens the classic Gateway paths to command execution. The kernel fix adds gw/acl_mode_proxy for kernels up to 7.77. Make sure secinfo and reginfo hold explicit rules.

Web Dispatcher and ICM WebSocket — Note 3778556, CVE-2026-89126 and Note 3778530, CVE-2026-76964. Malformed WebSocket control frames cause a heap out-of-bounds write before authentication. In addition, the bug reaches Web Dispatchers in HANA XS Classic and Advanced. Disabling WebSocket is possible but breaks features, so patch.

The other HotNews

Three CVSS 9.9 issues from Patch Day November 2026 need an authenticated user. SAPFTP over RFC lets a low-privileged ABAP user run OS commands; removing S_RFC for function group SFTP is a good interim step. S4CRM and SAP CRM have a remote-enabled function without authorization checks that allows XSLT injection. Knowledge Management XML Forms on the portal processes a request-selected XSL transformation.

CSRF in the Web Dispatcher and ICM administration UI (9.6) only applies where icm/HTTP/admin parameters exist and someone has the admin role, but then a single click by an administrator can lead to OS compromise. XXE in BusinessObjects Web Intelligence (9.1) lets an authenticated user read server files and reach internal systems through OLAP connections. Together, these make the HotNews list of Patch Day November 2026 unusually long.

Kernel and Web Dispatcher: one rollout, many notes

Seventeen of the Patch Day November 2026 fixes live in the SAP kernel, the standalone Web Dispatcher or both. Besides the HotNews above, they include three Message Server bugs (3789273, 3805570, 3808552), unauthenticated RFC memory corruption (3769130, CVSS 8.9) and several denial-of-service issues in ICM and Web Dispatcher. The IGS fixes (3809953, 3809934) come as a separate IGS patch. If you can only do one thing this month, update the kernel and every Web Dispatcher to levels that cover all of them.

Two Patch Day November 2026 notes need follow-up work beyond the patch. After Note 3782056, existing ICM and Web Dispatcher admin users keep their old password hashes until reset. Note 3797108 changes Web Dynpro Java theme loading to the current host by default, which can break custom theme setups. Note 3805681 has a cheap workaround if the patch has to wait: set ict/disable_brotli = TRUE.

SAP BTP: restage your apps

Ahead of Patch Day November 2026, SAP published Note 3843368 for a Brotli decoder out-of-bounds write reachable through Node.js, and Note 3846599 for the php2shell RCE chain in PHP. Both are CVSS 9.8. SAP has rolled out fixed buildpacks on Cloud Foundry, but running applications only pick them up after cf restage. Docker and Kyma workloads need rebuilt images and a rollout.

SAP Security Patch Day November 2026: all notes released or revised since October

Select a CVE below for our individual analysis. SAP Note links open the original advisory.

Patch Day November 2026: HotNews notes

The first table lists the HotNews notes of Patch Day November 2026, including the two out-of-band BTP notes.

SAP NoteCVEIssueCVSSRelease type
3778530CVE-2026-76964ICM WebSocket memory corruption10.0New, HotNews
3778556CVE-2026-89126Web Dispatcher memory corruption10.0New, HotNews
3798345CVE-2026-89103SAP Gateway access control10.0New, HotNews
3849308CVE-2026-120017SAML2 Authentication bypass10.0New, HotNews
3792735CVE-2026-76965SAPFTP command injection9.9New, HotNews
3809153CVE-2026-109803KM XML Forms code injection9.9New, HotNews
3834842CVE-2026-109795S4CRM xslt injection9.9New, HotNews
3843368CVE-2026-111497Node.js Brotli memory corruption9.8Out of band (29 Oct)
3846599CVE-2026-109618, CVE-2026-109619PHP on SAP BTP remote code execution9.8Out of band (5 Nov)
3804858CVE-2026-89119Web Dispatcher admin csrf9.6New, HotNews
3799117CVE-2026-109798BusinessObjects xxe9.1New, HotNews

Patch Day November 2026: High priority notes

Next, the High notes of Patch Day November 2026 are mostly kernel, Web Dispatcher, IGS and AS Java fixes.

SAP NoteCVEIssueCVSSRelease type
3769130CVE-2026-76966, CVE-2026-109796RFC Protocol memory corruption8.9New, High
3809953CVE-2026-120008Internet Graphics Service memory corruption8.2New, High
3803832CVE-2026-109800Web Dispatcher process crash7.7New, High
3789273CVE-2026-76973Message Server memory corruption7.5New, High
3792915CVE-2026-76970AS ABAP Parser memory corruption7.5New, High
3805570CVE-2026-120010Message Server heap overflow7.5New, High
3805681CVE-2026-109794ICM Resource exhaustion7.5New, High
3808552CVE-2026-109804Message Server information disclosure7.5New, High
3808627CVE-2026-109793ICM Header Parsing denial of service7.5New, High
3809934CVE-2026-109807, CVE-2026-109806Internet Graphics Service denial of service7.5New, High
3810485CVE-2026-89114AS Java EDM missing authentication7.5New, High
3842766CVE-2026-120015SAP Host Agent input validation7.5New, High
3833364CVE-2026-120009ADT AMDP Preview code injection7.2New, High

Patch Day November 2026: Medium and Low notes

Next, the Medium and Low notes of Patch Day November 2026 mostly need a standard support package or kernel update.

SAP NoteCVEIssueCVSSRelease type
3793716CVE-2026-109802ABAP RFC denial of service6.5New, Medium
3805959CVE-2026-109811AS ABAP server-side request forgery6.5New, Medium
3839977CVE-2026-109801, CVE-2026-109809NWDI Cockpit access control6.5New, Medium
3786876CVE-2026-109805RFC Callback weak cryptography6.4New, Medium
3797108CVE-2026-109810Web Dynpro Java css injection6.1New, Medium
3806484CVE-2026-120016Visual Composer reflected xss6.1New, Medium
3782056CVE-2026-89125ICM Password storage6.0New, Medium
3835738CVE-2026-89129AS Java WS-Addressing ssrf5.8New, Medium
3792447CVE-2026-89128PI Test Tool access control5.3New, Medium
3803144CVE-2026-73635BusinessObjects denial of service5.3New, Medium
3740168CVE-2026-89115SAP Start Service credential exposure4.4New, Medium
3801587CVE-2026-89131Enterprise Portal csrf4.3New, Medium
3802244CVE-2026-109808ST-PI missing authorization3.1New, Low

Revised notes

Finally, SAP also revised several older notes around Patch Day November 2026. So check whether you implemented an earlier version.

SAP NoteCVEIssueCVSSRelease type
3671819CVE-2026-76976SAP GUI for HTML XSS: new correction instructions (v18)5.4Update
3155685CVE-2026-44768WebClient UI missing CSP: title and symptom reworded4.1Update
3101986–WebClient UI CSP prerequisite: title and symptom reworded4.1Update
3805589CVE-2026-89107S/4HANA rule code injection: correction for S4CORE 106 (6 Nov)9.9Update
3756450CVE-2026-44766S/4HANA ICMR SQL injection: correction instructions (27 Oct)6.5Update
3703856CVE-2026-24309ABAP missing authorization check: correction instructions (27 Oct)6.4Update

Source: SAP for Me, SAP Security Notes for Patch Day November 2026, reviewed on 10 November 2026. Note versions change after release, so check the current version of each note before you plan.

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