CVE-2026-3449: Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used

Recommended actionWithin 7 days

Medium technical severity with public exploit material referenced by a structured source; prioritise exposed affected systems while verifying vendor guidance.

Mitigation available

What, why and how

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used. The Promise remains in a permanently pending state after the signal is aborted, causing any await or .then() usage to hang indefinitely. This can cause a control-flow leak that can lead to stalled requests, blocked workers, or degraded application availability.

What

Why

The product does not properly return control flow to the proper location after it has completed a task or detected an unusual condition.

How

An attacker operating through local access may attempt exploitation with low privileges. If successful, the issue may cause the confidentiality, integrity or availability impact described by the vendor.

What

Why

The product does not properly return control flow to the proper location after it has completed a task or detected an unusual condition.

How

Exploit reality and attack path

CVSS severity, EPSS forecast probability, public exploit material and CISA-confirmed exploitation are separate signals.

Observed exploitation

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

No confirmed evidence

No CISA KEV match was present at the last successful refresh. This means no confirmation from that source, not proof of no exploitation.

Public PoC / exploit material

Confirmed exploitation and public exploit material are separate signals. Attacks can occur without public proof-of-concept or exploit code.

Reference recorded

CISA Vulnrichment records proof-of-concept exploitation in its SSVC data. BlackTree has not independently executed or validated exploit material.

Likely attack path: local access → Incorrect Control Flow Scoping → cause the confidentiality, integrity or availability impact described by the vendor
Attack surface: Local
Privileges required: Low: a basic authenticated account is required
User interaction: None
Attack complexity: Low: no specialised conditions are recorded
Security boundary: Not a CVSS 4.0 base metric
Weakness ? CWE means Common Weakness Enumeration: a standard category for the underlying weakness.: CWE-705 ↗
CWE-705: Incorrect Control Flow Scoping. The product does not properly return control flow to the proper location after it has completed a task or detected an unusual condition.
CVSS vector ? CVSS means Common Vulnerability Scoring System. The vector records the metric values used to calculate technical severity.: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Common Vulnerability Scoring System 4.0: the compact vector below is decoded into plain language.
AVLocalAttack vector: The attacker needs local access to the vulnerable system.ACLowAttack complexity: No specialised conditions are required beyond attacker-controlled input.ATNoneAttack requirements: No additional deployment or execution condition is required.PRLowPrivileges required: The attacker needs basic user-level privileges.UINoneUser interaction: No action by another user is required.VCNoneVulnerable-system confidentiality: No direct loss is represented by this metric.VINoneVulnerable-system integrity: No direct loss is represented by this metric.VALowVulnerable-system availability: A successful attack can cause a limited loss.SCNoneSubsequent-system confidentiality: No direct loss is represented by this metric.SINoneSubsequent-system integrity: No direct loss is represented by this metric.SANoneSubsequent-system availability: No direct loss is represented by this metric.
Post-exploitation / living off the land: The issue can support a local privilege or sandbox boundary transition; normal system utilities may then be available in the gained context.

CWE-705Public exploit reference

Official authority intelligence

Only matched European and national findings are included. Language selectors and unavailable sources are omitted.

ENISA EUVD · EUVD-2026-9278Official EUVD mapping

0 linked advisory records.

Official EUVD record

BSI · German · WID-SEC-W-2026-2118IBM App Connect Enterprise: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in IBM App Connect Enterprise ausnutzen, um einen Denial of Service Angriff durchzuführen, und um Informationen offenzulegen.

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0958Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-34197 Référence CVE CVE-2026-34268 https://www.cve.org/CVERecord?id=CVE-2026-34268 Référence CVE CVE-2026-34477 https://www.cve.org/CVERecord?id=CVE-2026-34477 Référence CVE CVE-2026-34478 https://www.cve.org/CVERecord?id=CVE-2026-34478 Référence CVE CVE-2026-34479 https://www.cve.org/CVERecord?id=CVE-2026-34479 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=CVE-2026-34480 Référence CVE CVE-2026-34481 https://www.cve.org/CVERecord?id=CVE-2026-34481 Référence CVE CVE-2026-34483 https://www.cve.org/CVERecord?id=CVE-2026-34483 Référence CVE CVE-2026-34487 https://www.cve.org/CVERecord?id=CVE-2026-34487 Référence CVE CVE-2026-3449 https://www.cve.org/CVERecord?id=CVE-2026-3449 Référence CVE CVE-2026-34500 https://www.cve.org/CVERecord?id=CVE-2026-34500 Référence CVE CVE-2026-3520 https://www.cve.org/CVERecord?id=CVE-2026-3520 Référence CVE CVE-2026-35554 https://www.cve.org/CVERecord?id=CVE-2026-35554 Référence CVE CVE-2026-39304 https://www.cve.org/CVERecord?id=CVE-2026-39304 Référence CVE CVE-2026-39821 https://www.cve.org/CVERecord?id=CVE-2026-39821 Référence CVE CVE-2026-39827 https://www.cve.org/CVERecord?id=CVE-2026-39827 Référence CVE CVE-2026-39828 https://www.cve.org/CVERecord?id=CVE-2026-39828 Référence CVE CVE-2026-39829 https://www.cve.org/CVERecord?id=CVE

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0901Multiples vulnérabilités dans les produits IBM

d?id=CVE-2026-33671 Référence CVE CVE-2026-33672 https://www.cve.org/CVERecord?id=CVE-2026-33672 Référence CVE CVE-2026-33750 https://www.cve.org/CVERecord?id=CVE-2026-33750 Référence CVE CVE-2026-33814 https://www.cve.org/CVERecord?id=CVE-2026-33814 Référence CVE CVE-2026-34043 https://www.cve.org/CVERecord?id=CVE-2026-34043 Référence CVE CVE-2026-34077 https://www.cve.org/CVERecord?id=CVE-2026-34077 Référence CVE CVE-2026-34268 https://www.cve.org/CVERecord?id=CVE-2026-34268 Référence CVE CVE-2026-34282 https://www.cve.org/CVERecord?id=CVE-2026-34282 Référence CVE CVE-2026-34479 https://www.cve.org/CVERecord?id=CVE-2026-34479 Référence CVE CVE-2026-3449 https://www.cve.org/CVERecord?id=CVE-2026-3449 Référence CVE CVE-2026-3520 https://www.cve.org/CVERecord?id=CVE-2026-3520 Référence CVE CVE-2026-35536 https://www.cve.org/CVERecord?id=CVE-2026-35536 Référence CVE CVE-2026-39304 https://www.cve.org/CVERecord?id=CVE-2026-39304 Référence CVE CVE-2026-39821 https://www.cve.org/CVERecord?id=CVE-2026-39821 Référence CVE CVE-2026-39827 https://www.cve.org/CVERecord?id=CVE-2026-39827 Référence CVE CVE-2026-39828 https://www.cve.org/CVERecord?id=CVE-2026-39828 Référence CVE CVE-2026-39829 https://www.cve.org/CVERecord?id=CVE-2026-39829 Référence CVE CVE-2026-39830 https://www.cve.org/CVERecord?id=CVE

Official advisory

CERT-FR · French · CERTFR-2026-AVI-0500Multiples vulnérabilités dans VMware Tanzu

d?id=CVE-2026-33750 Référence CVE CVE-2026-33816 https://www.cve.org/CVERecord?id=CVE-2026-33816 Référence CVE CVE-2026-33870 https://www.cve.org/CVERecord?id=CVE-2026-33870 Référence CVE CVE-2026-33871 https://www.cve.org/CVERecord?id=CVE-2026-33871 Référence CVE CVE-2026-34043 https://www.cve.org/CVERecord?id=CVE-2026-34043 Référence CVE CVE-2026-34480 https://www.cve.org/CVERecord?id=CVE-2026-34480 Référence CVE CVE-2026-34483 https://www.cve.org/CVERecord?id=CVE-2026-34483 Référence CVE CVE-2026-34486 https://www.cve.org/CVERecord?id=CVE-2026-34486 Référence CVE CVE-2026-34487 https://www.cve.org/CVERecord?id=CVE-2026-34487 Référence CVE CVE-2026-3449 https://www.cve.org/CVERecord?id=CVE-2026-3449 Référence CVE CVE-2026-34500 https://www.cve.org/CVERecord?id=CVE-2026-34500 Référence CVE CVE-2026-40175 https://www.cve.org/CVERecord?id=CVE-2026-40175 Référence CVE CVE-2026-41239 https://www.cve.org/CVERecord?id=CVE-2026-41239 Référence CVE CVE-2026-41240 https://www.cve.org/CVERecord?id=CVE-2026-41240 Référence CVE CVE-2026-4800 https://www.cve.org/CVERecord?id=CVE-2026-4800 Gestion détaillée du document le 27 avril 2026 Version initiale Alertes Avis Bulletins d’actualités Mentions légales Conditions générales À propos Contact cyber.gouv.fr service-public.fr legifrance.gouv.fr info.gouv.fr

Official advisory

Patch and workaround

Operational remediation based on structured source evidence.

Status ? Patch availability is based on structured fixed-version fields and authoritative update references. If no fix is verified, check the vendor advisory before making a change.: Mitigation available
Affected: openshift-sandboxed-containers/osc-pccs as a component of Confidential Compute Attestation; io.cryostat-cryostat as a component of Cryostat 4; rhmtc/openshift-migration-ui-rhel8 as a component of Migration Toolkit for Containers; network-observability/network-observability-console-plugin-compat-rhel9 as a component of Network Observability Operator; openshift-pipelines/pipelines-console-plugin-rhel8 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-hub-api-rhel8 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-hub-db-migration-rhel8 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-hub-ui-rhel8 as a component of OpenShift Pipelines; openshift-pipelines/pipelines-hub-ui-rhel9 as a component of OpenShift Pipelines; openshift-service-mesh/kiali-rhel8 as a component of OpenShift Service Mesh 2; openshift-service-mesh/kiali-operator-bundle as a component of OpenShift Service Mesh 3; openshift-service-mesh/kiali-rhel9 as a component of OpenShift Service Mesh 3; openshift-service-mesh/kiali-rhel9-operator as a component of OpenShift Service Mesh 3; rhacm2/thanos-rhel9 as a component of Red Hat Advanced Cluster Management for Kubernetes 2; org.jolokia-jolokia-parent as a component of Red Hat AMQ Broker 7; ansible-on-clouds/aoc-azure-aap-installer-rhel9 as a component of Red Hat Ansible Automation Platform 2; io.apicurio-apicurio-registry as a component of Red Hat build of Apicurio Registry 2; org.optaweb.vehiclerouting-optaweb-vehicle-routing as a component of Red Hat build of OptaPlanner 8; org.infinispan-infinispan-console as a component of Red Hat Data Grid 8; pcs as a component of Red Hat Enterprise Linux 9; pcs-snmp as a component of Red Hat Enterprise Linux 9; pcs.src as a component of Red Hat Enterprise Linux 9; rhelai3/bootc-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3; rhelai3/disk-image-cuda-rhel9 as a component of Red Hat Enterprise Linux AI (RHEL AI) 3; io.syndesis-syndesis-parent as a component of Red Hat Fuse 7; org.jboss.hal-hal-parent as a component of Red Hat JBoss Enterprise Application Platform 7; rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9 as a component of Red Hat OpenShift AI (RHOAI); odf4/mcg-core-rhel9 as a component of Red Hat Openshift Data Foundation 4; devspaces/code-rhel9 as a component of Red Hat OpenShift Dev Spaces; devspaces/code-sshd-rhel9 as a component of Red Hat OpenShift Dev Spaces; and 4 more
Fixed: No fixed version is explicitly recorded in the structured CVE data.
Action: No verified patch reference is present in the current structured sources. Check the vendor advisory before making a change.
Workaround: Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.

Evidence and provenance

Published 3 Mar 2026 · Last source change 4 May 2026, 05:23 UTC · CWE-705 · Incorrect Control Flow Scoping

CVE recordCVE.org · 5.2

CVSS sourceCNA

EPSS source

The date BlackTree first stored a score for this CVE from the daily FIRST EPSS feed.

FIRST · tracked since 2026-08-14

European sourceENISA EUVD · EUVD-2026-9278

Product sourceVendor CSAF · Red Hat Product Security

Remediation sourceVendor CSAF · Red Hat Product Security

CWE sourceCNA

NVD statusNVD not scheduled

Core structured fields are present and their contributing authorities are shown above.

Material change intelligence

What changed after publication

View recent updates →

No material field changes have been recorded since change tracking began. Routine source refreshes and cosmetic edits are intentionally excluded.

2026-03-03CVE published

ENISA EUVD · EUVD-2026-9278↗Vendor CSAF · Red Hat Product Security↗CISA Vulnrichment SSVC evidence↗CVE authority or vendor reference↗Official CVE record (CNA and ADP data)↗NVD record↗

Technical terms and abbreviations used in this report

CVE: Common Vulnerabilities and Exposures: the public identifier for one disclosed vulnerability.
CVSS: Common Vulnerability Scoring System: a technical severity framework; it is not patching priority by itself.
EPSS: Exploit Prediction Scoring System: FIRST's estimate of the probability that exploitation activity will be observed in the next 30 days; it is a forecast, not confirmation.
CWE: Common Weakness Enumeration: the standard category describing the underlying software or hardware weakness.
CNA: CVE Numbering Authority: an organisation authorised to assign and publish CVE records.
CISA ADP: Cybersecurity and Infrastructure Security Agency Authorized Data Publisher: structured enrichment added to a CVE record.
NVD: National Vulnerability Database: NIST's enrichment service for CVE records.
CERT / CSIRT: A computer security incident response team that publishes warnings or coordinates incident response.
PoC: Proof of concept: public material that demonstrates or helps reproduce exploitation.
CSAF: Common Security Advisory Framework: a machine-readable format for security advisories.
LoTL: Living off the land: abuse of legitimate tools or system functions during an attack.

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used

Authoritative vendor CSAF and VEX advisories

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

ENISA European Vulnerability Database

EUVD-2026-9278

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

What changed after publication

Versions of the package @tootallnate/once before 3.0.1 are vulnerable to Incorrect Control Flow Scoping in promise resolving when AbortSignal option is used

National CERT insights ?CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.

EUVD-2026-9278

What, why and how

Exploit reality and attack path

Official authority intelligence

Patch and workaround

Evidence and provenance

National CERT insights
?
CERT means Computer Emergency Response Team; CSIRT is the closely related term Computer Security Incident Response Team.