Cyber Resilience

CVE-2024-29296

Portainer 2.19.4

Public PoC
Published
10 April 2024
Modified
09 July 2026
CVSS Score v3.1 5.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS Score 0.012 66th percentile
Risk Priority 54 floored blend · peak EPSS

Summary

CVE-2024-29296 is a medium-severity Incorrect User Management (CWE-286) vulnerability in Portainer Portainer. Its CVSS base score is 5.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Account Manipulation (T1098); ranked in the top 34% of CVEs by exploit likelihood; 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 AC-2 (Account Management) and IA-4 (Identifier Management) — 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.

A user enumeration vulnerability exists in Portainer CE version 2.19.4. The flaw occurs in the authentication process, where measurable differences in server response time allow an observer to distinguish between valid and invalid usernames. The issue is tracked as CWE-286 and carries a CVSS 3.1 base score of 5.3, reflecting network attack vector, low complexity, and no required credentials.

An unauthenticated remote attacker can repeatedly submit authentication attempts with chosen usernames and analyze timing variations to compile a list of valid accounts. This information can subsequently support more targeted attacks such as credential stuffing or password spraying against the enumerated users.

The EPSS score for the CVE stands at 0.1294 with no material increase from its recorded peak. Public references include a proof-of-concept repository on GitHub, but no vendor advisory or patch details are provided in the available sources.

OWASP Top 10 for Web (2025)

A06:2025 Insecure Design

EU & UK References

Vulnerability Data

A user enumeration vulnerability was found in Portainer CE 2.19.4. This issue occurs during user authentication process, where a difference in response time could allow a remote unauthenticated user to determine if a username is valid or not.

CWE(s)
CWE-286

Related Threats

MITRE ATT&CK Enterprise Techniques

T1098 Account Manipulation Persistence
Adversaries may manipulate accounts to maintain and/or elevate access to victim systems.
attack.mitre.org →
T1136 Create Account Persistence
Adversaries may create an account to maintain access to victim systems.
attack.mitre.org →
T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
T1098.001 Additional Cloud Credentials Persistence
Adversaries may add adversary-controlled credentials to a cloud account to maintain persistent access to victim accounts and instances within the environment.
attack.mitre.org →
T1098.003 Additional Cloud Roles Persistence
An adversary may add additional roles or permissions to an adversary-controlled cloud account to maintain persistent access to a tenant.
attack.mitre.org →
T1098.007 Additional Local or Domain Groups Persistence
An adversary may add additional local or domain groups to an adversary-controlled account to maintain persistent access to a system or domain.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-44848Same product: Portainer Portainer
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CVE-2026-44883Same product: Portainer Portainer
CVE-2026-44882Same product: Portainer Portainer
CVE-2024-33662Same product: Portainer Portainer
CVE-2024-33661Same product: Portainer Portainer
CVE-2026-55761Same product: Portainer Portainer
CVE-2026-44881Same product: Portainer Portainer

Affected Assets

portainer
portainer
2.19.4

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

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Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 2 hardening rules · 2 OS baselines
Validate
Prove the fix (OWASP ASVS)

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Mitigating Controls (NIST 800-53 r5) AI

AC-2 Account Management good match

AC-2 directly requires defining, assigning, and controlling user accounts throughout their lifecycle, structurally preventing improper user management.

IA-4 Identifier Management good match

IA-4 mandates authorized management of user identifiers, stopping the creation or retention of unmanaged user identities.

PS-4 Personnel Termination partial match

PS-4 enforces timely disabling and removal of access upon termination, addressing a key failure mode of incorrect ongoing user management.

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 mostly match
prevents

Directly addresses management of user identities and credentials throughout their lifecycle.

PR.AA-05 mostly match
prevents

Covers policy-driven definition and review of user permissions and entitlements.

PR.AA-02 partial match
prevents

Supports proper user onboarding by binding verified identities to credentials.

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.

A.5.16 Identity management mostly match
prevents

Identity management directly governs the full lifecycle of user accounts, preventing incorrect user management.

A.5.18 Access rights mostly match
prevents

Access rights provisioning and de-provisioning ensure users are correctly created, modified, and removed.

A.6.5 Responsibilities after termination or change of employment mostly match
prevents

Responsibilities after termination or change of employment address removal of user access but not ongoing user management.

A.8.2 Privileged access rights mostly match
prevents

Privileged access rights assume correct user accounts exist; the control does not manage user creation or removal.

A.5.15 Access control partial match
prevents

Access control policies rely on accurate user management but do not themselves define user lifecycle processes.

A.8.3 Information access restriction partial match
mitigates

Information access restriction depends on properly managed users but does not address user management itself.

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 9 (1 rule)
  • V-271707 OL 9 must enable the Pluggable Authentication Module (PAM) interface for SSHD. prevents CWE-286
RHEL 9 (1 rule)
  • V-257986 RHEL 9 must enable the Pluggable Authentication Module (PAM) interface for SSHD. prevents CWE-286

References