CVE-2026-100287: Missing authorization in the attachment history API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated low-privileged user…
Noroxi assessment
Priority: Monitor (action score 21/100)
- The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
- Probability of exploitation in the next 30 days: 0.17% (FIRST EPSS).
- Anyone who can reach it over the internet can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
- According to the record, no fixed version is available yet.
Low priority for now. Update when a fix is released; follow the vendor's advisory.
Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it
Primary sources: NVD · CVE.org · FIRST EPSS
Missing authorization in the attachment history API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated low-privileged user to permanently delete or restore vault attachments via a crafted API request.
- Published
- Sep 29, 2026
- Updated
- Sep 29, 2026
- EPSS
- 0.1% · 6th percentile
- CWE
- CWE-862
Report tools
Action score
21
Monitor
Low priority for now.
- CVSS
- 21 / 40 · 5.4 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.1%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
Get told when this record changes
- Not in KEV: no record of exploitation in the wild
- No public exploit code on record
- No fixed version yet
If any of these changes, we'll tell you in the daily email digest.
Is your version affected? Check itNoroxi analysis
What does it mean in your environment?
The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.
We use this product, ask for helpAffected systems
Is your version affected?
Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.
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Versions reported by the vendor
Affected version ranges reported by the assigning authority (DEVOLUTIONS). Independent of NVD's CPE analysis and usually ahead of it.
Devolutions Server
- before 2026.3.7.0affected
Same product
devolutions: all recordsOther highest-scoring records for the same primary product.
- CVE-2026-13327Improper certificate validation on LDAPS connections to Active Directory in Devolutions Server 2026.2.16 and earlier allows a…33Monitor
- CVE-2026-121580Server-side request forgery in the Jira ticketing filter lookup in Devolutions Server 2026.2.22.0 and earlier allows an authenticated…32Monitor
- CVE-2026-105488Missing authorization in the global vault in Devolutions Server 2026.3.7.0 and earlier allows an authenticated user with only the global…28Monitor
Published before and after this one in the same product
- ← EarlierCVE-2026-90971Sep 15, 2026 · Server-Side Request Forgery (SSRF) in the VMware synchronization feature in Devolutions Server 2026.2.16 and earlier allows a…26Monitor
- ← EarlierCVE-2026-100286Sep 29, 2026 · Missing authorization in the data source settings API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated…26Monitor
- Later →CVE-2026-100288Sep 29, 2026 · Cleartext storage of sensitive information in the database in Devolutions Server 2026.3.5.0 and earlier allows an attacker with read access…28Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
No fix version is recorded for this entry. Check the references for vendor advisories.
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
- CVE-2026-1054887 days apartMissing authorization in the global vault in Devolutions Server 2026.3.7.0 and earlier allows an authenticated user with only the global…28Monitor
- CVE-2026-933320 days apartImproper access control in the partial connection API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated low-privileged…21Monitor
- CVE-2026-1002890 days apartMissing authorization in the gateway network scan token API in Devolutions Server 2026.3.5.0 and earlier allows an authenticated…20Monitor
- CVE-2026-11448723 days apartMissing authorization in the PAM AD computer import endpoint in Devolutions Server 2026.3.5.0 through 2026.3.10.0 and 2026.2.20.0 and…17Monitor
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
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Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Anyone who can reach it over the internet can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- none
- Integrity
- low · data or configuration can be modified
- Availability
- low · the service can be disrupted
- Attack vector
- Network
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- None
- Integrity impact
- Low
- Availability impact
- Low
Weakness class (CWE)
CWE-862 · Missing AuthorizationCVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
nvd-secondary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Change log
- Exploit maturity— → none
- CVSS— → 5.4
- Severity— → medium
- SSVC exploitation— → none
For records you follow, these changes also arrive as notifications. →
References
Vendor advisories and official records. Exploit/PoC links are deliberately left out.