CVE-2026-26149
Microsoft Power Apps ≤ 3.26032.10.0
Raw vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:HSummary
CVE-2026-26149 is a critical-severity Improper Neutralization of Escape, Meta, or Control Sequences (CWE-150) vulnerability in Microsoft Power Apps. Its CVSS base score is 9.0 (Critical).
Operationally, exploitation aligns with the MITRE ATT&CK technique Content Injection (T1659); ranked at the 44th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
CVE-2026-26149 is a vulnerability in Microsoft Power Apps stemming from improper neutralization of escape, meta, or control sequences. Published on 2026-04-14, it enables an authorized attacker to perform spoofing over a network and is associated with CWE-150. The issue carries a CVSS v3.1 base score of 9.0 (AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H), classifying it as critical due to its potential for high-impact effects across confidentiality, integrity, and availability.
Exploitation requires an attacker with low privileges, such as an authenticated user, to target victims over the network with low complexity, though user interaction is necessary. Upon success, the attack changes scope and allows spoofing, leading to high confidentiality, integrity, and availability impacts as scored by CVSS.
The Microsoft Security Response Center advisory provides details on mitigation at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-26149.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-22371
Vulnerability Data
Improper neutralization of escape, meta, or control sequences in Microsoft Power Apps allows an authorized attacker to perform spoofing over a network.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V1.2.10V1.3.12
Mitigating Controls (NIST 800-53 r5) AI
SI-10 requires validation/sanitization of inputs that directly stops escape/meta/control sequences from reaching downstream components.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require input neutralization and escaping to prevent this class of flaw.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Security testing can detect the weakness but does not itself implement neutralization.
Secure development lifecycle mandates input validation and output encoding that directly neutralizes escape/meta sequences.
Application security requirements explicitly call for controls against injection and malformed input sequences.
Secure architecture principles reduce attack surface but do not prescribe specific neutralization techniques.
Secure coding standards require proper escaping and neutralization of control characters before downstream processing.