CVE-2026-105133 (GCVE-0-2026-105133)
Vulnerability from cvelistv5 – Published: 2026-10-04 05:15 – Updated: 2026-10-26 14:31 X_Known Exploited VulnerabilityTitle
Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication
Summary
A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This affects the function checkSysPwd of the file com/ahsay/obs/api/ApiStructsAction.java of the component API. Performing a manipulation of the argument random results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 9.15.2.70 and 10.3.4.45 is able to mitigate this issue. It is recommended to upgrade the affected component. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary.
Severity
SSVC
Exploitation: active
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-14 00:00 UTC
CWE
- CWE-287 - Improper Authentication
Assigner
References
7 references
| URL | Tags |
|---|---|
| https://vuldb.com/vuln/413350 | vdb-entrytechnical-description |
| https://vuldb.com/vuln/413350/cti | signaturepermissions-required |
| https://vuldb.com/cve/CVE-2026-105133 | third-party-advisory |
| https://vuldb.com/submit/942688 | third-party-advisory |
| https://www.ahsay.com/en/company/announcements/pa… | patch |
| https://www.huntress.com/blog/ahsaycbs-flaws-exploit | broken-linkexploit |
| https://www.cisa.gov/known-exploited-vulnerabilit… | government-resource |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Ahsay | AhsayCBS |
Affected:
9.15.2.0
Affected: 9.15.2.1 Affected: 9.15.2.2 Affected: 9.15.2.3 Affected: 9.15.2.4 Affected: 9.15.2.5 Affected: 9.15.2.6 Affected: 9.15.2.7 Affected: 9.15.2.8 Affected: 9.15.2.9 Affected: 9.15.2.10 Affected: 9.15.2.11 Affected: 9.15.2.12 Affected: 9.15.2.13 Affected: 9.15.2.14 Affected: 9.15.2.15 Affected: 9.15.2.16 Affected: 9.15.2.17 Affected: 9.15.2.18 Affected: 9.15.2.19 Affected: 9.15.2.20 Affected: 9.15.2.21 Affected: 9.15.2.22 Affected: 9.15.2.23 Affected: 9.15.2.24 Affected: 9.15.2.25 Affected: 9.15.2.26 Affected: 9.15.2.27 Affected: 9.15.2.28 Affected: 9.15.2.29 Affected: 9.15.2.30 Affected: 9.15.2.31 Affected: 9.15.2.32 Affected: 9.15.2.33 Affected: 9.15.2.34 Affected: 9.15.2.35 Affected: 9.15.2.36 Affected: 9.15.2.37 Affected: 9.15.2.38 Affected: 9.15.2.39 Affected: 9.15.2.40 Affected: 9.15.2.41 Affected: 9.15.2.42 Affected: 9.15.2.43 Affected: 9.15.2.44 Affected: 9.15.2.45 Affected: 9.15.2.46 Affected: 9.15.2.47 Affected: 9.15.2.48 Affected: 9.15.2.49 Affected: 9.15.2.50 Affected: 9.15.2.51 Affected: 9.15.2.52 Affected: 9.15.2.53 Affected: 9.15.2.54 Affected: 9.15.2.55 Affected: 9.15.2.56 Affected: 9.15.2.57 Affected: 9.15.2.58 Affected: 9.15.2.59 Affected: 9.15.2.60 Affected: 9.15.2.61 Affected: 9.15.2.62 Affected: 9.15.2.63 Affected: 9.15.2.64 Affected: 9.15.2.65 Affected: 9.15.2.66 Affected: 9.15.2.67 Affected: 9.15.2.68 Affected: 9.15.2.69 Affected: 10.3.4.0 Affected: 10.3.4.1 Affected: 10.3.4.2 Affected: 10.3.4.3 Affected: 10.3.4.4 Affected: 10.3.4.5 Affected: 10.3.4.6 Affected: 10.3.4.7 Affected: 10.3.4.8 Affected: 10.3.4.9 Affected: 10.3.4.10 Affected: 10.3.4.11 Affected: 10.3.4.12 Affected: 10.3.4.13 Affected: 10.3.4.14 Affected: 10.3.4.15 Affected: 10.3.4.16 Affected: 10.3.4.17 Affected: 10.3.4.18 Affected: 10.3.4.19 Affected: 10.3.4.20 Affected: 10.3.4.21 Affected: 10.3.4.22 Affected: 10.3.4.23 Affected: 10.3.4.24 Affected: 10.3.4.25 Affected: 10.3.4.26 Affected: 10.3.4.27 Affected: 10.3.4.28 Affected: 10.3.4.29 Affected: 10.3.4.30 Affected: 10.3.4.31 Affected: 10.3.4.32 Affected: 10.3.4.33 Affected: 10.3.4.34 Affected: 10.3.4.35 Affected: 10.3.4.36 Affected: 10.3.4.37 Affected: 10.3.4.38 Affected: 10.3.4.39 Affected: 10.3.4.40 Affected: 10.3.4.41 Affected: 10.3.4.42 Affected: 10.3.4.43 Affected: 10.3.4.44 Unaffected: 9.15.2.70 Unaffected: 10.3.4.45 cpe:2.3:a:ahsay:ahsaycbs:*:*:*:*:*:*:*:* |
CISA
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: e4050eda-7317-4e10-84ad-4301341ba667
Exploited: Yes
Timestamps
First Seen: 2026-10-14
Asserted: 2026-10-14
Scope
Notes: Ahsay AhsayCBS Improper Authentication Vulnerability | Affected: Ahsay / AhsayCBS | Description: Ahsay AhsayCBS contains an improper authentication vulnerability that could allow a remote attacker to bypass authentication via manipulation of the random parameter in the API component’s checkSysPwd function. This vulnerability can be chained with CVE-2026-105134. | Required action: Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines. | Due date: 2026-10-17 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update ; ; BOD 26-04: https://www.cisa.gov/news-events/directives/bod-26-04-prioritizing-security-updates-based-risk ; Forensics Triage Requirements: https://www.cisa.gov/news-events/directives/bod-26-04-implementation-guidance-prioritizing-security-updates-based-risk ; https://nvd.nist.gov/vuln/detail/CVE-2026-105133
Evidence
Type: Vendor Report
Signal: Successful Exploitation
Confidence: 80%
Source: cisa-kev
Details
| Cwes | CWE-287 |
|---|---|
| Feed | CISA Known Exploited Vulnerabilities Catalog |
| Product | AhsayCBS |
| Due Date | 2026-10-17 |
| Date Added | 2026-10-14 |
| Vendorproject | Ahsay |
| Vulnerabilityname | Ahsay AhsayCBS Improper Authentication Vulnerability |
| Knownransomwarecampaignuse | Unknown |
References
Created: 2026-10-14 20:00 UTC
| Updated: 2026-10-14 20:00 UTC
Shadowserver
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 2b8585e9-46a2-432b-abc2-ebc8251c2bf5
Exploited: Yes
Characteristics
Severity:
73.0
Timestamps
First Seen: 2026-10-27
Asserted: 2026-10-27
Last Seen: 2026-10-28
Scope
Asset Exposure: ['internet-facing']
Notes: Affected: Ahsay / AhsayCBS | Class: backup | Severity: High (CVSS 7.3) | IoT: no | In CISA KEV: yes | Honeypot connections on 2026-10-28: 6
Evidence
Type: Honeypot
Signal: In The Wild Attempts
Confidence: 70%
Source: shadowserver
Details
| 1D | 2 |
|---|---|
| Iot | no |
| Feed | Shadowserver Foundation honeypot/exploited-vulnerabilities |
| Type | http-scan |
| Class | backup |
| 7D Avg | 0 |
| Vendor | Ahsay |
| 30D Avg | 0 |
| 90D Avg | 0 |
| Product | AhsayCBS |
| Cisa Kev | yes |
| Connections | 6 |
| Observation Date | 2026-10-28 |
| Vulnerability Class | CVSS |
| Vulnerability Score | 7.3 |
| Vulnerability Severity | High |
References
Created: 2026-10-29 01:00 UTC
| Updated: 2026-10-30 01:00 UTC
Previdian
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: d6d21aab-9f68-48ac-9444-19dcb185877d
Exploited: Yes
Timestamps
First Seen: 2026-10-09
Asserted: 2026-10-09
Scope
Notes: Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication | Affected: Ahsay / AhsayCBS | CVSS: 6.9 (MEDIUM) | EPSS: 0.00383 | Used in malware: unknown | Not yet in CISA KEV: True
Evidence
Type: Public Report
Signal: Successful Exploitation
Confidence: 70%
Source: previdian
Details
| Feed | Previdian (previdian.com) |
|---|---|
| Title | Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication |
| Cve Id | CVE-2026-105133 |
| Vendor | Ahsay |
| Ghsa Id | None |
| Product | AhsayCBS |
| Added Date | 2026-10-09T09:53:50.123Z |
| Cvss Score | 6.9 |
| Epss Score | 0.00383 |
| Previous Ids | |
| Cvss Severity | MEDIUM |
| Virtual Patch | False |
| Cvss Estimated | False |
| Epss Percentile | 0.30303 |
| Used In Malware | unknown |
| Vulnerability Id | CVE-2026-105133 |
| Ahead Of Cisa Kev | None |
| Not Yet In Cisa Kev | True |
References
Created: 2026-10-10 10:00 UTC
| Updated: 2026-10-10 10:00 UTC
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"version": "9.15.2.22"
},
{
"status": "affected",
"version": "9.15.2.23"
},
{
"status": "affected",
"version": "9.15.2.24"
},
{
"status": "affected",
"version": "9.15.2.25"
},
{
"status": "affected",
"version": "9.15.2.26"
},
{
"status": "affected",
"version": "9.15.2.27"
},
{
"status": "affected",
"version": "9.15.2.28"
},
{
"status": "affected",
"version": "9.15.2.29"
},
{
"status": "affected",
"version": "9.15.2.30"
},
{
"status": "affected",
"version": "9.15.2.31"
},
{
"status": "affected",
"version": "9.15.2.32"
},
{
"status": "affected",
"version": "9.15.2.33"
},
{
"status": "affected",
"version": "9.15.2.34"
},
{
"status": "affected",
"version": "9.15.2.35"
},
{
"status": "affected",
"version": "9.15.2.36"
},
{
"status": "affected",
"version": "9.15.2.37"
},
{
"status": "affected",
"version": "9.15.2.38"
},
{
"status": "affected",
"version": "9.15.2.39"
},
{
"status": "affected",
"version": "9.15.2.40"
},
{
"status": "affected",
"version": "9.15.2.41"
},
{
"status": "affected",
"version": "9.15.2.42"
},
{
"status": "affected",
"version": "9.15.2.43"
},
{
"status": "affected",
"version": "9.15.2.44"
},
{
"status": "affected",
"version": "9.15.2.45"
},
{
"status": "affected",
"version": "9.15.2.46"
},
{
"status": "affected",
"version": "9.15.2.47"
},
{
"status": "affected",
"version": "9.15.2.48"
},
{
"status": "affected",
"version": "9.15.2.49"
},
{
"status": "affected",
"version": "9.15.2.50"
},
{
"status": "affected",
"version": "9.15.2.51"
},
{
"status": "affected",
"version": "9.15.2.52"
},
{
"status": "affected",
"version": "9.15.2.53"
},
{
"status": "affected",
"version": "9.15.2.54"
},
{
"status": "affected",
"version": "9.15.2.55"
},
{
"status": "affected",
"version": "9.15.2.56"
},
{
"status": "affected",
"version": "9.15.2.57"
},
{
"status": "affected",
"version": "9.15.2.58"
},
{
"status": "affected",
"version": "9.15.2.59"
},
{
"status": "affected",
"version": "9.15.2.60"
},
{
"status": "affected",
"version": "9.15.2.61"
},
{
"status": "affected",
"version": "9.15.2.62"
},
{
"status": "affected",
"version": "9.15.2.63"
},
{
"status": "affected",
"version": "9.15.2.64"
},
{
"status": "affected",
"version": "9.15.2.65"
},
{
"status": "affected",
"version": "9.15.2.66"
},
{
"status": "affected",
"version": "9.15.2.67"
},
{
"status": "affected",
"version": "9.15.2.68"
},
{
"status": "affected",
"version": "9.15.2.69"
},
{
"status": "affected",
"version": "10.3.4.0"
},
{
"status": "affected",
"version": "10.3.4.1"
},
{
"status": "affected",
"version": "10.3.4.2"
},
{
"status": "affected",
"version": "10.3.4.3"
},
{
"status": "affected",
"version": "10.3.4.4"
},
{
"status": "affected",
"version": "10.3.4.5"
},
{
"status": "affected",
"version": "10.3.4.6"
},
{
"status": "affected",
"version": "10.3.4.7"
},
{
"status": "affected",
"version": "10.3.4.8"
},
{
"status": "affected",
"version": "10.3.4.9"
},
{
"status": "affected",
"version": "10.3.4.10"
},
{
"status": "affected",
"version": "10.3.4.11"
},
{
"status": "affected",
"version": "10.3.4.12"
},
{
"status": "affected",
"version": "10.3.4.13"
},
{
"status": "affected",
"version": "10.3.4.14"
},
{
"status": "affected",
"version": "10.3.4.15"
},
{
"status": "affected",
"version": "10.3.4.16"
},
{
"status": "affected",
"version": "10.3.4.17"
},
{
"status": "affected",
"version": "10.3.4.18"
},
{
"status": "affected",
"version": "10.3.4.19"
},
{
"status": "affected",
"version": "10.3.4.20"
},
{
"status": "affected",
"version": "10.3.4.21"
},
{
"status": "affected",
"version": "10.3.4.22"
},
{
"status": "affected",
"version": "10.3.4.23"
},
{
"status": "affected",
"version": "10.3.4.24"
},
{
"status": "affected",
"version": "10.3.4.25"
},
{
"status": "affected",
"version": "10.3.4.26"
},
{
"status": "affected",
"version": "10.3.4.27"
},
{
"status": "affected",
"version": "10.3.4.28"
},
{
"status": "affected",
"version": "10.3.4.29"
},
{
"status": "affected",
"version": "10.3.4.30"
},
{
"status": "affected",
"version": "10.3.4.31"
},
{
"status": "affected",
"version": "10.3.4.32"
},
{
"status": "affected",
"version": "10.3.4.33"
},
{
"status": "affected",
"version": "10.3.4.34"
},
{
"status": "affected",
"version": "10.3.4.35"
},
{
"status": "affected",
"version": "10.3.4.36"
},
{
"status": "affected",
"version": "10.3.4.37"
},
{
"status": "affected",
"version": "10.3.4.38"
},
{
"status": "affected",
"version": "10.3.4.39"
},
{
"status": "affected",
"version": "10.3.4.40"
},
{
"status": "affected",
"version": "10.3.4.41"
},
{
"status": "affected",
"version": "10.3.4.42"
},
{
"status": "affected",
"version": "10.3.4.43"
},
{
"status": "affected",
"version": "10.3.4.44"
},
{
"status": "unaffected",
"version": "9.15.2.70"
},
{
"status": "unaffected",
"version": "10.3.4.45"
}
]
}
],
"credits": [
{
"lang": "en",
"type": "reporter",
"value": "nickc (VulDB User)"
},
{
"lang": "en",
"type": "coordinator",
"value": "VulDB Vulnerability Moderation Team"
}
],
"descriptions": [
{
"lang": "en",
"value": "A vulnerability was detected in Ahsay AhsayCBS up to 9.15.2.69/10.3.4.44. This affects the function checkSysPwd of the file com/ahsay/obs/api/ApiStructsAction.java of the component API. Performing a manipulation of the argument random results in improper authentication. It is possible to initiate the attack remotely. The exploit is now public and may be used. Upgrading to version 9.15.2.70 and 10.3.4.45 is able to mitigate this issue. It is recommended to upgrade the affected component. The initial patch did not fix the security vulnerability properly. An update of the CVE entry to reflect this became necessary."
}
],
"metrics": [
{
"cvssV4_0": {
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:A",
"version": "4.0"
}
},
{
"cvssV3_1": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:H/RL:O/RC:C",
"version": "3.1"
}
},
{
"cvssV3_0": {
"baseScore": 7.3,
"baseSeverity": "HIGH",
"vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:H/RL:O/RC:C",
"version": "3.0"
}
},
{
"cvssV2_0": {
"baseScore": 7.5,
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C",
"version": "2.0"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-287",
"description": "Improper Authentication",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-10-26T14:31:10.237Z",
"orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"shortName": "VulDB"
},
"references": [
{
"name": "VDB-413350 | Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication",
"tags": [
"vdb-entry",
"technical-description"
],
"url": "https://vuldb.com/vuln/413350"
},
{
"name": "VDB-413350 | CTI Indicators (IOB, IOC, IOA)",
"tags": [
"signature",
"permissions-required"
],
"url": "https://vuldb.com/vuln/413350/cti"
},
{
"name": "CVE-2026-105133 | CVE Analysis and Report",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/cve/CVE-2026-105133"
},
{
"name": "Submit #942688 | Ahsay Systems Corporation Limited AhsayCBS 10.0.3 Authentication Bypass",
"tags": [
"third-party-advisory"
],
"url": "https://vuldb.com/submit/942688"
},
{
"tags": [
"patch"
],
"url": "https://www.ahsay.com/en/company/announcements/patch-cve-105133-105134-update"
},
{
"tags": [
"broken-link",
"exploit"
],
"url": "https://www.huntress.com/blog/ahsaycbs-flaws-exploit"
}
],
"tags": [
"x_known-exploited-vulnerability"
],
"timeline": [
{
"lang": "en",
"time": "2026-10-03T00:00:00.000Z",
"value": "Advisory disclosed"
},
{
"lang": "en",
"time": "2026-10-03T02:00:00.000Z",
"value": "VulDB entry created"
},
{
"lang": "en",
"time": "2026-10-26T15:35:52.000Z",
"value": "VulDB entry last update"
}
],
"title": "Ahsay AhsayCBS API ApiStructsAction.java checkSysPwd improper authentication",
"x_generator": [
"VulDB PVTS v202610"
]
}
},
"cveMetadata": {
"assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
"assignerShortName": "VulDB",
"cveId": "CVE-2026-105133",
"datePublished": "2026-10-04T05:15:14.561Z",
"dateReserved": "2026-10-03T13:13:31.953Z",
"dateUpdated": "2026-10-26T14:31:10.237Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
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Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.