Cyber Resilience

CVE-2026-102117

Published
30 September 2026
Modified
01 October 2026
CVSS Score v3.1 7.2
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0076 54th percentile
Risk Priority 54 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-102117 is a high-severity Reliance on Untrusted Inputs in a Security Decision (CWE-807) vulnerability in Githubusercontent (inferred from references). Its CVSS base score is 7.2 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 46% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-17 (Remote Access) and AC-24 (Access Control Decisions) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

On deployments where the remote-support capability is licensed and enabled, an authenticated System Administrator who also possessed the key protecting the submitted data could redirect the underlying system's outbound support connection to a destination of their choosing. That destination could…

more

then have operating-system commands executed on the node and receive their output, potentially resulting in remote code execution with the privileges of a local service account.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
T1548 Abuse Elevation Control Mechanism Privilege Escalation
Adversaries may circumvent mechanisms designed to control privilege elevation to gain higher-level permissions.
T1556 Modify Authentication Process Defense Impairment
Adversaries may modify authentication mechanisms and processes to access user credentials or enable otherwise unwarranted access to accounts.
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
T1557.001 Name Resolution Poisoning and SMB Relay Credential Access
By responding to LLMNR/NBT-NS/mDNS network traffic, adversaries may spoof an authoritative source for name resolution to force communication with an adversary controlled system.
T1557.002 ARP Cache Poisoning Credential Access
Adversaries may poison Address Resolution Protocol (ARP) caches to position themselves between the communication of two or more networked devices.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-20390Shared CWE-940
CVE-2026-35643Shared CWE-940
CVE-2025-43280Shared CWE-940
CVE-2025-13086Shared CWE-940
CVE-2023-3663Shared CWE-940
CVE-2026-40434Shared CWE-940
CVE-2024-1621Shared CWE-940
CVE-2024-40515Shared CWE-940
CVE-2025-23018Shared CWE-940
CVE-2025-61932Shared CWE-940

Affected Assets

Githubusercontent
—
inferred from references and description; NVD did not file a CPE for this CVE

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 1 hardening rule · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)
  • V3.5.3
  • V10.6.2
  • V15.2.4

Mitigating Controls (NIST 800-53 r5) AI

AC-17 Remote Access partial match

AC-17 mandates documented restrictions and authentication requirements for remote access, blocking channels whose origins are not properly verified.

Explicitly requires that every access decision be based on authoritative, protected decision data rather than caller-supplied inputs.

Access enforcement requires decisions to be made from trusted policy data rather than modifiable client-supplied inputs.

Information-flow enforcement applies rules to validated, internal attributes instead of untrusted external values.

IA-3 requires unique identification and authentication of devices before any communication channel is established, directly stopping acceptance of unverified origins.

SC-23 protects session authenticity, ensuring the source of an established communication channel is verified and cannot be spoofed.

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.

PR.AA-01 partial match
prevents

Proper management of identities/credentials reduces the chance that security decisions will be driven by untrusted inputs.

PR.AA-03 partial match
prevents

Strong authentication mechanisms directly prevent security decisions from depending on modifiable, untrusted inputs.

PR.AA-04 partial match
prevents

Verification and protection of identity assertions stops reliance on attacker-controlled values for authorization decisions.

PR.AA-05 partial match
prevents

Policy-driven, least-privilege authorization reduces opportunities to bypass controls via tampered inputs.

PR.IR-01 partial match
prevents

Network protections reduce unauthorized channel usage but do not specifically require origin verification at channel setup.

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.

finds

Monitoring can detect exploitation but does not stop the underlying weakness.

degrades

Network security controls enforce source verification and channel authentication for incoming communications.

degrades

Security of network services includes validating the origin of service requests and connections.

mitigates

Network segregation limits exposure but does not directly verify source of individual channels.

prevents

Cryptography can support channel authentication but does not inherently verify source without proper implementation.

prevents

Application security requirements explicitly call for validation of inputs used in security decisions.

References