Cyber Resilience

CVE-2026-32745

Jetbrains Datalore ≤ 2026.1

Published
13 March 2026
Modified
02 April 2026
Patch / advisory
CVSS Score v3.1 6.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:L/A:N
EPSS Score 0.0010 1th percentile
Risk Priority 45 floored blend · peak EPSS

CVSS and EPSS are reproduced from their sources (NVD, FIRST EPSS). Risk Priority is our own derived reading, not an NVD score.

Summary

CVE-2026-32745 is a medium-severity Sensitive Cookie in HTTPS Session Without 'Secure' Attribute (CWE-614) vulnerability in Jetbrains Datalore. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Network Sniffing (T1040); ranked at the 1th 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 SC-8 (Transmission Confidentiality and Integrity) — see the control section below for these in your framework.

OWASP Top 10 for Web (2025)

EU & UK References

Vulnerability Data

In JetBrains Datalore before 2026.1 session hijacking was possible due to missing secure attribute for cookie settings

CWE(s)

Related Threats

MITRE ATT&CK Enterprise Techniques

T1040 Network Sniffing Credential Access
Adversaries may passively sniff network traffic to capture information about an environment, including authentication material passed over the network.
T1539 Steal Web Session Cookie Credential Access
An adversary may steal web application or service session cookies and use them to gain access to web applications or Internet services as an authenticated user without needing credentials.
T1557 Adversary-in-the-Middle Credential Access
Adversaries may attempt to position themselves between two or more networked devices using an adversary-in-the-middle (AiTM) technique to support follow-on behaviors such as [Network Sniffing](https://attack.
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2025-43013Same vendor: Jetbrains
CVE-2025-57727Same vendor: Jetbrains
CVE-2026-49370Same vendor: Jetbrains
CVE-2024-28173Same vendor: Jetbrains
CVE-2024-43180Shared CWE-319, CWE-614
CVE-2023-5035Shared CWE-319, CWE-614
CVE-2026-4820Shared CWE-319, CWE-614
CVE-2023-0055Shared CWE-319, CWE-614
CVE-2024-10718Shared CWE-319, CWE-614
CVE-2023-42016Shared CWE-319, CWE-614

Affected Assets

jetbrains
datalore
≤ 2026.1

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V3.3.1

Mitigating Controls (NIST 800-53 r5) AI

SC-8 directly requires protecting confidentiality of transmitted information, which structurally eliminates cleartext transmission of sensitive data.

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.DS-02 full match
prevents

Encryption of data-in-transit directly prevents cleartext transmission while the control also addresses integrity and availability.

PR.PS-01 mostly match
prevents

Enforcing hardened configuration baselines includes requiring the Secure flag on sensitive cookies.

PR.PS-06 mostly match
prevents

Secure SDLC practices explicitly require correct use of security attributes such as the cookie Secure flag.

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

Specifying encryption and other security technology for network services prevents transmission of sensitive information in cleartext over potentially untrusted channels.

prevents

Mandating cryptographic protection and stronger authentication on public networks stops the transmission of plaintext sensitive information.

mitigates

Specifying communications-security requirements and secure remote-access methods (including encryption expectations) prevents the transmission of sensitive data in cleartext over home or public networks.

mitigates

Armoured conduits, electromagnetic shielding and locked enclosures make passive eavesdropping on unencrypted traffic traversing the cables more difficult, mitigating exposure of sensitive data in transit.

mitigates

Use of cryptography control mandates encryption in transit, which HTTPS provides, but does not specifically require the Secure cookie attribute.

prevents

Application security requirements can include cookie security settings, but the control is broader and does not explicitly mandate the Secure attribute.

References