CVE-2023-47640

highpriority · track · 35OT risk · elevatedEPSS 0.004 · 30 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.36% (30th) EPSS

CVSS 8.8 · high

Is it mine?

2 products

Check your exposure

Who says so?

3 sources

cnnvd · enisa_euvd · nvd

EPSS · scored 2026-10-28

DataHub is an open-source metadata platform. The HMAC signature for DataHub Frontend sessions was being signed using a SHA-1 HMAC with the frontend secret key. SHA1 with a 10 byte key can be brute forced using sufficient resources (i.e. state level actors with large computational capabilities). DataHub Frontend was utilizing the Play LegacyCookiesModule with default settings which utilizes a SHA1 HMAC for signing. This is compounded by using a shorter key length than recommended by default for the signing key for the randomized secret value. An authenticated attacker (or attacker who has otherwise obtained a session token) could crack the signing key for DataHub and obtain escalated privileges by generating a privileged session cookie. Due to key length being a part of the risk, deployments should update to the latest helm chart and rotate their session signing secret. All deployments using the default helm chart configurations for generating the Play secret key used for signing are affected by this vulnerability. Version 0.11.1 resolves this vulnerability. All users are advised to upgrade. There are no known workarounds for this vulnerability.

cvss

Technical severity, 0–10. One row per scoring source.

8.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.4–8.8

v3.18.8highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 5.9

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:Lsecondary · ENISA EU

v3.16.4mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:Lsecondary · security-advisories@github.comexploitability 1.6 · impact 4.7

v3.18.1highCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: no · Technical Impact: totalcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-327USprimary

affected products (2)

Products and version ranges known to be affected.

datahub-project datahub≤ < 0.11.1enisa_euvdEU
datahub project datahub< 0.11.1nvdUScpe:2.3:a:datahub_project:datahub:*:*:*:*:*:*:*:*

also known as (2)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd NVD CVE.org MITRE

published 2023-11-14modified 2026-06-17

related (920)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2023-22518US	critical9.8OT critical	100.0% (100th)	KEV	2023-10-31
All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. This Improper Authorization vulnerability allows an unauthenticated attacker to re…
CVE-2023-34039US	critical9.8OT high	67.2% (99th)	Exploit	2023-08-29
Aria Operations for Networks contains an Authentication Bypass vulnerability due to a lack of unique cryptographic key generation. A malicious actor with network access to Aria Ope…
CVE-2016-2183US	high7.5OT high	94.7% (100th)	Exploit	2016-09-01
The DES and Triple DES ciphers, as used in the TLS, SSH, and IPSec protocols and other protocols and products, have a birthday bound of approximately four billion blocks, which mak…
CVE-2016-6602US	critical9.8OT high	55.7% (99th)	Exploit	2017-01-23
ZOHO WebNMS Framework 5.2 and 5.2 SP1 use a weak obfuscation algorithm to store passwords, which allows context-dependent attackers to obtain cleartext passwords by leveraging acce…
CVE-2014-8687US	critical9.8OT high	43.8% (99th)	Exploit	2017-06-08
Seagate Business NAS devices with firmware before 2015.00322 allow remote attackers to execute arbitrary code with root privileges by leveraging use of a static encryption key to c…

+915 more

references (4)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan