Common Weakness Enumeration
CWE-821
AllowedIncorrect Synchronization
Abstraction: Base · Status: Incomplete
The product utilizes a shared resource in a concurrent manner, but it does not correctly synchronize access to the resource.
13 vulnerabilities reference this CWE, most recent first.
CVE-2024-1739 (GCVE-0-2024-1739)
Vulnerability from cvelistv5 – Published: 2024-04-16 00:00 – Updated: 2024-08-01 18:48
VLAI
EPSS
VEX
Title
Case Insensitive Email Address Validation Vulnerability in lunary-ai/lunary
Summary
lunary-ai/lunary is vulnerable to an authentication issue due to improper validation of email addresses during the signup process. Specifically, the server fails to treat email addresses as case insensitive, allowing the creation of multiple accounts with the same email address by varying the case of the email characters. For example, accounts for 'abc@gmail.com' and 'Abc@gmail.com' can both be created, leading to potential impersonation and confusion among users.
Severity
7.5 (High)
7.5 (High)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-04-30 17:13 UTC
CWE
- CWE-821 - Incorrect Synchronization
Assigner
@huntr_ai
CNA
References
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| lunary-ai | lunary-ai/lunary |
Affected:
unspecified , < 1.0.2
(custom)
|
|
| lunary-ai | lunary |
Affected:
0 , < 1.0.2
(custom)
cpe:2.3:a:lunary-ai:lunary:*:*:*:*:*:*:*:* |
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CVE-2023-5088 (GCVE-0-2023-5088)
Vulnerability from cvelistv5 – Published: 2023-11-03 13:58 – Updated: 2026-11-07 13:41
VLAI
EPSS
VEX
Title
Qemu: improper ide controller reset can lead to mbr overwrite
Summary
A bug in QEMU could cause a guest I/O operation otherwise addressed to an arbitrary disk offset to be targeted to offset 0 instead (potentially overwriting the VM's boot code). This could be used, for example, by L2 guests with a virtual disk (vdiskL2) stored on a virtual disk of an L1 (vdiskL1) hypervisor to read and/or write data to LBA 0 of vdiskL1, potentially gaining control of L1 at its next reboot.
Severity
6.4 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-06-12 14:28 UTC
CWE
- CWE-821 - Incorrect Synchronization
Assigner
redhat
CNA
References
8 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2024:2135 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2024:2962 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2023-5088 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2247283 | issue-trackingx_refsource_REDHAT |
| https://lore.kernel.org/all/20230921160712.99521-… | |
| https://lists.debian.org/debian-lts-announce/2024… | x_transferred |
| https://security.netapp.com/advisory/ntap-2023120… | x_transferred |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 8 |
Unaffected:
8100020240314161907.e155f54d , < *
(rpm)
cpe:/a:redhat:enterprise_linux:8::appstream cpe:/a:redhat:enterprise_linux:8::crb |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
17:8.2.0-11.el9_4 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:rhel_els:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:rhel_els:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 Advanced Virtualization |
cpe:/a:redhat:advanced_virtualization:8::el8
|
Date Public
2023-09-21 00:00
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CVE-2022-1931 (GCVE-0-2022-1931)
Vulnerability from cvelistv5 – Published: 2022-05-31 01:25 – Updated: 2024-08-03 00:17
VLAI
EPSS
VEX
Title
Incorrect Synchronization in polonel/trudesk
Summary
Incorrect Synchronization in GitHub repository polonel/trudesk prior to 1.2.3.
Severity
9.1 (Critical)
CWE
- CWE-821 - Incorrect Synchronization
Assigner
@huntrdev
CNA
References
2 references
| URL | Tags |
|---|---|
| https://huntr.dev/bounties/50c4cb63-65db-41c5-a16… | x_refsource_CONFIRM |
| https://github.com/polonel/trudesk/commit/3145408… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| polonel | polonel/trudesk |
Affected:
unspecified , < 1.2.3
(custom)
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"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H",
"version": "3.0"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-821 Incorrect Synchronization"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://huntr.dev/bounties/50c4cb63-65db-41c5-a16d-0560d7131fde",
"refsource": "CONFIRM",
"url": "https://huntr.dev/bounties/50c4cb63-65db-41c5-a16d-0560d7131fde"
},
{
"name": "https://github.com/polonel/trudesk/commit/314540864dbf2c0eaa99aa42c3d317de9501eb67",
"refsource": "MISC",
"url": "https://github.com/polonel/trudesk/commit/314540864dbf2c0eaa99aa42c3d317de9501eb67"
}
]
},
"source": {
"advisory": "50c4cb63-65db-41c5-a16d-0560d7131fde",
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
"assignerShortName": "@huntrdev",
"cveId": "CVE-2022-1931",
"datePublished": "2022-05-31T01:25:11.000Z",
"dateReserved": "2022-05-29T00:00:00.000Z",
"dateUpdated": "2024-08-03T00:17:00.934Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
No mitigation information available for this CWE.
No CAPEC attack patterns related to this CWE.