Security readout for executives and security teams
Plain-English summary
CVE-2026-24815 is a critical issue in datavane TIS before v4.3.0. The reported weakness combines dangerous file upload handling with unsafe XML/XStream deserialization. If reachable, an unauthenticated network attacker could potentially compromise confidentiality, integrity, and availability. No source provided shows active exploitation.
Executive priority
Treat as urgent for any internet-facing or broadly accessible TIS deployment. Prioritize inventory and upgrade planning immediately because the CVSS score is critical and the bug class can lead to full system impact. Do not assume exploitation is occurring without supporting evidence.
Technical view
The CVE describes CWE-434 and CWE-502 in datavane/tis, specifically tis-plugin extension implementation modules and XmlFile.java. The CVSS 4.0 score is 10.0 with network attack vector, low complexity, no privileges, and no user interaction. The referenced GitHub PR is tagged as the patch source.
Likely exposure
Organizations running datavane TIS versions before v4.3.0 are the stated affected population. Exposure is highest where TIS upload or XML-processing functionality is reachable from untrusted networks or users. The source bundle does not provide deployment-specific affected endpoints.
Exploitation context
The CVE is not listed as KEV in the supplied data, and no cited source claims active exploitation. The scoring indicates remote, unauthenticated exploitation is plausible if the vulnerable component is exposed, but public exploit status is not established here.
Researcher notes
Public details are limited to the CVE description and a GitHub patch reference. Avoid inferring specific endpoints, payloads, or exploitability beyond the stated CVSS vector and affected version range. The affected metadata includes limited version detail, so validate against actual TIS release history.
Mitigation direction
- Identify all datavane TIS deployments and their exact versions.
- Upgrade affected TIS instances to v4.3.0 or later if available.
- Review datavane PR #443 and vendor release notes before deployment.
- Restrict untrusted access to TIS upload and XML-processing surfaces.
- Monitor vendor channels for additional guidance or backported fixes.
Validation and detection
- Confirm whether each TIS instance is before v4.3.0.
- Check whether tis-plugin extension implementation modules are deployed.
- Review access paths to file upload and XML processing features.
- Verify the PR #443 fix or equivalent release is applied.
- Review logs for suspicious upload or deserialization-related errors.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-434: File access and web shell behavior lookup
File traversal and upload weaknesses can lead teams to review file, web shell, execution, and collection telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCWE-502: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-24815 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 10 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:C/RE:M/U:Red
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:C/RE:M/U:Red——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
10CriticalVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/S:P/AU:Y/R:U/V:C/RE:M/U:Red
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/datavane/tis/pull/443CVE reference · patch
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Unrestricted Upload of File with Dangerous Type
Unrestricted Upload of File with Dangerous Type represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Deserialization of Untrusted Data
Deserialization of Untrusted Data represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.