Security readout for executives and security teams
Plain-English summary
CVE-2026-1188 is a buffer overflow flaw in Eclipse OMR’s port library. A function that lists processor feature names can write past a caller-provided buffer if the buffer size calculation omits separators. Eclipse states the issue is fixed in OMR 0.8.0. Business risk depends on whether OMR is embedded in exposed software paths.
Executive priority
Treat as a moderate-priority dependency issue. It has a published fix and no cited active exploitation, but the no-auth network CVSS characteristics justify timely inventory and upgrade planning, especially for exposed services or widely distributed products embedding Eclipse OMR.
Technical view
The flaw is CWE-131: incorrect buffer size calculation. The affected API did not account for separators inserted between processor feature names when deciding whether a write was safe. The CVE record assigns CVSS 4.0 score 6.9, vector AV:N/AC:L/PR:N/UI:N with low confidentiality, integrity, and availability impacts.
Likely exposure
Exposure is most likely in products or services that embed Eclipse OMR versions after 0.2.0 and before the fixed 0.8.0 release. The provided affected data is limited, so teams should confirm exact version ranges and bundled copies from Eclipse OMR guidance and their own dependency inventory.
Exploitation context
No provided source reports active exploitation, and the CVE is not marked in CISA KEV. The CVSS vector indicates network attackability without privileges or user interaction, but practical exploitability depends on whether an application exposes code paths using the vulnerable API with incorrectly sized buffers.
Researcher notes
The public detail identifies the bug class and fix but not a weaponized exploit. The key research questions are exact affected version boundaries, downstream projects embedding OMR, and whether reachable application paths pass undersized buffers to the feature-name API.
Mitigation direction
- Upgrade Eclipse OMR to version 0.8.0 or later where feasible.
- Check vendor guidance for products that bundle or statically link Eclipse OMR.
- Rebuild dependent applications after updating embedded OMR source or libraries.
- Prioritize internet-facing services if they include vulnerable OMR code paths.
Validation and detection
- Inventory Eclipse OMR versions in source, dependencies, containers, and vendor components.
- Confirm whether bundled OMR is older than fixed version 0.8.0.
- Review whether applications call the processor feature-name API.
- Track remediation evidence through build manifests or software composition analysis results.
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-131: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. 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-2026-1188 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
- Medium
- CVSS
- 6.9 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
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:L/VI:L/VA:L/SC:L/SI:L/SA:L——Primary CVE scoreVulnerability scoring details
Base CVSS 4.0 score
6.9MediumVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/eclipse-omr/omr/pull/8082CVE reference
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.
Incorrect Calculation of Buffer Size
Incorrect Calculation of Buffer Size represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.