CVE-2026-19896 (GCVE-0-2026-19896)
Vulnerability from cvelistv5 – Published: 2026-08-15 14:15 – Updated: 2026-08-15 14:15
VLAI
EPSS
VEX
Title
mangroup dtale Flask Session Cookie app.py build_secret_key random values
Summary
A flaw has been found in mangroup dtale up to 3.22.0. This vulnerability affects the function build_secret_key of the file dtale/app.py of the component Flask Session Cookie. This manipulation causes insufficiently random values. Remote exploitation of the attack is possible. The attack's complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance.
Severity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/390086 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/390086/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-19896 | third-party-advisory |
| https://vuldb.com/submit/870672 | third-party-advisory |
| https://github.com/man-group/dtale/issues/960 | exploitissue-tracking |
| https://github.com/man-group/dtale/pull/963 | issue-trackingpatch |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| mangroup | dtale |
Affected:
3.0
Affected: 3.1 Affected: 3.2 Affected: 3.3 Affected: 3.4 Affected: 3.5 Affected: 3.6 Affected: 3.7 Affected: 3.8 Affected: 3.9 Affected: 3.10 Affected: 3.11 Affected: 3.12 Affected: 3.13 Affected: 3.14 Affected: 3.15 Affected: 3.16 Affected: 3.17 Affected: 3.18 Affected: 3.19 Affected: 3.20 Affected: 3.21 Affected: 3.22.0 cpe:2.3:a:mangroup:dtale:*:*:*:*:*:*:*:* |
{
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"affected": [
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],
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{
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},
{
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},
{
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"version": "3.14"
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{
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"version": "3.15"
},
{
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"version": "3.16"
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{
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},
{
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},
{
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{
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{
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"credits": [
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"value": "ZAST.AI (VulDB User)"
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"type": "coordinator",
"value": "VulDB CNA Team"
}
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"descriptions": [
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"value": "A flaw has been found in mangroup dtale up to 3.22.0. This vulnerability affects the function build_secret_key of the file dtale/app.py of the component Flask Session Cookie. This manipulation causes insufficiently random values. Remote exploitation of the attack is possible. The attack\u0027s complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. The pull request to fix this issue awaits acceptance."
}
],
"metrics": [
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"descriptions": [
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"description": "Insufficiently Random Values",
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},
{
"descriptions": [
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"description": "Cryptographic Issues",
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"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
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{
"name": "VDB-390086 | mangroup dtale Flask Session Cookie app.py build_secret_key random values",
"tags": [
"vdb-entry",
"technical-description"
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"url": "https://vuldb.com/vuln/390086"
},
{
"name": "VDB-390086 | CTI Indicators (IOB, IOC, TTP, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/390086/cti"
},
{
"name": "CVE-2026-19896 | CVE Analysis and Report",
"tags": [
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],
"url": "https://vuldb.com/cve/CVE-2026-19896"
},
{
"name": "Submit #870672 | man-group dtale \u003c=3.22.0 Cryptographically Weak PRNG",
"tags": [
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"url": "https://vuldb.com/submit/870672"
},
{
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"url": "https://github.com/man-group/dtale/issues/960"
},
{
"tags": [
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"url": "https://github.com/man-group/dtale/pull/963"
}
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"value": "VulDB entry created"
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{
"lang": "en",
"time": "2026-08-14T21:02:35.000Z",
"value": "VulDB entry last update"
}
],
"title": "mangroup dtale Flask Session Cookie app.py build_secret_key random values",
"x_generator": [
"VulDB PVTS v202608"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-19896",
"datePublished": "2026-08-15T14:15:08.291Z",
"dateReserved": "2026-08-14T18:57:25.195Z",
"dateUpdated": "2026-08-15T14:15:08.291Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-19896",
"date": "2026-08-16",
"epss": "0.00308",
"percentile": "0.23489"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-19896\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-08-15T15:16:37.507\",\"lastModified\":\"2026-08-15T15:16:37.507\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A flaw has been found in mangroup dtale up to 3.22.0. This vulnerability affects the function build_secret_key of the file dtale/app.py of the component Flask Session Cookie. This manipulation causes insufficiently random values. Remote exploitation of the attack is possible. The attack\u0027s complexity is rated as high. It is stated that the exploitability is difficult. The exploit has been published and may be used. 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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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