Cyber Posture

CVE-2026-1172

MediumPublic PoC

Published: 19 January 2026

Published
19 January 2026
Modified
23 February 2026
KEV Added
Patch
CVSS Score 5.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
EPSS Score 0.0013 32.4th percentile
Risk Priority 11 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2026-1172 is a medium-severity Improper Resource Shutdown or Release (CWE-404) vulnerability in Birkir Prime. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 32.4th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Threat & Defense at a Glance

What attackers do: exploitation maps to Application or System Exploitation (T1499.004).
Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-404

Contingency plan updates incorporate proper resource shutdown and release steps, preventing attackers from leveraging incomplete cleanup during recovery scenarios.

addresses: CWE-404

Mandates explicit shutdown of the network connection at session conclusion, directly addressing improper resource release.

addresses: CWE-404

Requires proper shutdown/release procedures that include overwriting or isolating data to block unintended transfer via reused system objects.

addresses: CWE-404

Procedures can mandate orderly shutdown or release of resources when failures occur, preventing improper resource handling after a fault.

MITRE ATT&CK Enterprise TechniquesAI

T1499.004 Application or System Exploitation Impact
Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.
Why these techniques?

Direct application-level DoS via unauthenticated exploitation of the public-facing GraphQL handler (CWE-404 resource handling flaw).

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

A vulnerability has been found in birkir prime up to 0.4.0.beta.0. The affected element is an unknown function of the file /graphql of the component GraphQL Directive Handler. The manipulation leads to denial of service. Remote exploitation of the attack…

more

is possible. The exploit has been disclosed to the public and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Deeper analysisAI

CVE-2026-1172 is a denial-of-service vulnerability (CWE-404) in birkir prime versions up to 0.4.0.beta.0. The affected component is an unknown function within the /graphql file of the GraphQL Directive Handler. Manipulation of this function leads to denial of service, with 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).

Unauthenticated remote attackers can exploit this vulnerability over the network with low attack complexity and no user interaction required. Successful exploitation results in low-impact availability disruption, causing denial of service without compromising confidentiality or integrity.

The project was notified early via GitHub issue #543 but has not responded. No patches or official mitigations are available. The exploit has been publicly disclosed and may be used, with details referenced in the birkir prime GitHub repository and VulDB entries (ctiid.341766, id.341766, submit.731103).

Details

CWE(s)

Affected Products

birkir
prime
≤ 0.4.0

CVEs Like This One

CVE-2026-1173Same product: Birkir Prime
CVE-2026-1174Same product: Birkir Prime
CVE-2026-1171Same product: Birkir Prime
CVE-2026-1175Same product: Birkir Prime
CVE-2026-1169Same product: Birkir Prime
CVE-2026-2517Shared CWE-404
CVE-2025-22846Shared CWE-404
CVE-2024-55553Shared CWE-404
CVE-2025-15539Shared CWE-404
CVE-2026-4240Shared CWE-404

References