CVE-2026-8149
Raw vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:N/AU:X/R:X/V:X/RE:M/U:AmberSummary
CVE-2026-8149 is a medium-severity Inconsistency Between Implementation and Documented Design (CWE-1068) vulnerability. Its CVSS base score is 5.1 (Medium).
Operationally, ranked at the 5th 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 SA-10 (Developer Configuration Management) and SA-11 (Developer Testing and Evaluation) — see the control section below for these in your framework.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-28534
Vulnerability Data
A vulnerability in Legion of the Bouncy Castle Inc. BC-LTS bcprov-lts8on on X86_64, AVX, AVX-512f, Linux, Legion of the Bouncy Castle Inc. BC-FJA bc-fips on Linux, X86_64, AVX, AVX-512f. This vulnerability is associated with program files gcm128w, gcm512w, gcm128w.C, gcm512w.C.…
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This issue affects BC-LTS: from 2.73.0 before 2.73.11; BC-FJA: from 2.1.0 before 2.1.3.
- CWE(s)
Related Threats
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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- 3 hardening rules · 2 OS baselines
V7.1.1
Mitigating Controls (NIST 800-53 r5) AI
Requires developer configuration management that tracks and controls changes to both design and code, reducing divergence between them.
Developer testing and evaluation activities directly examine whether the delivered implementation satisfies documented design and requirements.
Requires the developer to follow a documented development process that explicitly includes maintaining consistency between design artifacts and implementation.
Mandates use of an SDLC that incorporates security and privacy activities, thereby structuring development to keep implementation aligned with documented design.
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 include design-to-code verification activities that directly address implementation versus documented design mismatches.
Formal change and exception tracking reduces uncontrolled drift from documented designs but does not verify consistency.
Configuration management verifies deployed state against documented baselines, catching some but not all design-implementation drift.
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 deviations, yet does not prevent the inconsistency from occurring.
Change management can catch drift after the fact, but does not guarantee initial implementation matches design.
Documented operating procedures help keep implementation aligned with stated design, but do not enforce design-level consistency.
Project-level design-to-implementation traceability directly reduces divergence between documented design and delivered code.
Secure SDLC mandates that implementation matches documented design artifacts, catching the inconsistency early.
Application security requirements can reference design, but do not themselves ensure implementation matches that design.
Hardening callouts derived
Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).
Oracle Linux 8 (1 rule)
- V-248873 The Trivial File Transfer Protocol (TFTP) server package must not be installed if not required for OL 8 operational support. prevents CWE-1068
RHEL 7 (2 rules)
- V-204392 The Red Hat Enterprise Linux operating system must be configured so that the file permissions, ownership, and group membership of system files and commands match the vendor values. prevents CWE-1068
- V-204621 The Red Hat Enterprise Linux operating system must not have the Trivial File Transfer Protocol (TFTP) server package installed if not required for operational support. prevents CWE-1068