chatchat-space Langchain-Chatchat Uploaded File openai_routes.py _get_file_id random values

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2026-7847
StatePUBLISHED
AssignerVulDB
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-05-05 17:17:05 UTC
Updated2026-05-05 19:06:58 UTC
DescriptionA vulnerability was found in chatchat-space Langchain-Chatchat up to 0.3.1.3. The affected element is the function _get_file_id of the file libs/chatchat-server/chatchat/server/api_server/openai_routes.py of the component Uploaded File Handler. Performing a manipulation results in insufficiently random values. Access to the local network is required for this attack. The attack's complexity is rated as high. The exploitability is described as difficult. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Risk And Classification

Primary CVSS: v4.0 1.2 LOW from [email protected]

CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-310 | CWE-330 | CWE-330 Insufficiently Random Values | CWE-310 Cryptographic Issues

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary1.2LOWCVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/C...
4.0CNADECLARED2.1LOWCVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P
3.1[email protected]Primary2.6LOWCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
3.1CNADECLARED2.6LOWCVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
3.0CNADECLARED2.6LOWCVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R
2.0[email protected]Secondary1.4AV:A/AC:H/Au:S/C:P/I:N/A:N
2.0CNADECLARED1.4AV:A/AC:H/Au:S/C:P/I:N/A:N/E:POC/RL:ND/RC:UR

CVSS v4.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Attack Requirements
None
Privileges Required
Low
User Interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
None
Sub Availability
None

CVSS:4.0/AV:A/AC:H/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

CVSS v3.1 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS v3.0 Breakdown

Attack Vector
Adjacent
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None

CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N/E:P/RL:X/RC:R

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Chatchat-space Langchain-Chatchat affected 0.3.1.0 Not specified
CNA Chatchat-space Langchain-Chatchat affected 0.3.1.1 Not specified
CNA Chatchat-space Langchain-Chatchat affected 0.3.1.2 Not specified
CNA Chatchat-space Langchain-Chatchat affected 0.3.1.3 Not specified

References

ReferenceSourceLinkTags
github.com/3em0/cve_repo/blob/main/Langchain-Chatchat/Vuln-3-Predictable... [email protected] github.com
github.com/chatchat-space/Langchain-Chatchat/issues/5464 [email protected] github.com
vuldb.com/vuln/361126/cti [email protected] vuldb.com
github.com/chatchat-space/Langchain-Chatchat [email protected] github.com
vuldb.com/submit/807796 [email protected] vuldb.com
vuldb.com/vuln/361126 [email protected] vuldb.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Dem00 (VulDB User) (en)

CNA: VulDB CNA Team (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-05-05T00:00:00.000ZAdvisory disclosed
CNA2026-05-05T02:00:00.000ZVulDB entry created
CNA2026-05-05T12:26:20.000ZVulDB entry last update
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