Cyber Resilience

CVE-2026-1171

Birkir Prime ≤ 0.4.0

Public PoC
Published
19 January 2026
Modified
23 February 2026
Patch / advisory
CVSS Score v4 5.5
Click a component to see what it means
Raw vectorCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/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:X/AU:X/R:X/V:X/RE:X/U:X
EPSS Score 0.0049 40th percentile
Risk Priority 39 floored blend · peak EPSS

Summary

CVE-2026-1171 is a medium-severity Improper Resource Shutdown or Release (CWE-404) vulnerability in Birkir Prime. Its CVSS base score is 5.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked at the 40th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

The strongest mitigations our analysis identified map to SA-11 (Developer Testing and Evaluation) and SA-8 (Security and Privacy Engineering Principles) — 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-2026-1171 is a denial-of-service vulnerability in birkir prime versions up to 0.4.0.beta.0. The flaw affects an unknown function within the /graphql file of the GraphQL Field Handler component. Manipulation of this function can trigger a denial of service, as classified under CWE-404 (Improper Resource Shutdown or Denial of Service). The vulnerability carries a CVSS v3.1 base score of 5.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L), indicating medium severity with low impact on availability but no effects on confidentiality or integrity.

The vulnerability can be exploited remotely by unauthenticated attackers with network access and no user interaction required. Successful exploitation leads to a denial-of-service condition, potentially disrupting service availability for affected instances of birkir prime.

Advisories from VulDB and the project's GitHub repository detail the issue, with an early report filed in birkir/prime issue #542. However, the project maintainers have not yet responded or issued patches, leaving affected versions unmitigated. No official vendor guidance on workarounds is available at this time.

An exploit for this vulnerability has been publicly disclosed and is available for use, increasing the risk of active exploitation against unpatched deployments.

EU & UK References

Vulnerability Data

A flaw has been found in birkir prime up to 0.4.0.beta.0. Impacted is an unknown function of the file /graphql of the component GraphQL Field Handler. Executing a manipulation can lead to denial of service. The attack may be launched…

more

remotely. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
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.
T1499 Endpoint Denial of Service Impact
Adversaries may perform Endpoint Denial of Service (DoS) attacks to degrade or block the availability of services to users.
T1499.001 OS Exhaustion Flood Impact
Adversaries may launch a denial of service (DoS) attack targeting an endpoint's operating system (OS).
T1499.003 Application Exhaustion Flood Impact
Adversaries may target resource intensive features of applications to cause a denial of service (DoS), denying availability to those applications.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-1172Same product: Birkir Prime
CVE-2026-1173Same product: Birkir Prime
CVE-2026-1174Same product: Birkir Prime
CVE-2026-1169Same product: Birkir Prime
CVE-2026-1170Same product: Birkir Prime
CVE-2026-1175Same product: Birkir Prime
CVE-2026-1587Shared CWE-404
CVE-2024-1199Shared CWE-404
CVE-2025-24811Shared CWE-404
CVE-2024-0887Shared CWE-404

Affected Assets

birkir
prime
≤ 0.4.0

Mitigating Controls

Mitigating Controls (NIST 800-53 r5) AI

Developer testing and evaluation can discover missing or incorrect resource releases after code is written.

Engineering principles can require explicit resource acquisition/release patterns that stop improper shutdown from being introduced.

Priority-based resource allocation limits the blast radius when released resources are not returned to the pool.

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.PS-06 mostly match
prevents

Secure SDLC practices directly include coding standards for correct resource allocation and release.

DE.CM-09 partial match
prevents

Runtime monitoring can detect resource exhaustion caused by improper shutdown or release.

ID.AM-08 partial match
prevents

Lifecycle management of assets can encompass proper resource release at end-of-life or shutdown.

PR.IR-04 partial match
prevents

Capacity management helps surface leaks from unreleased resources but does not prevent the coding 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.

prevents

Including restart, recovery and media-handling instructions reduces the likelihood that resources or sensitive data will be left in an exposed or improperly released state after a failure.

References