# CVE-2026-18288: OriginLab OriginPro out-of-bounds write in OPJU file parsing

Source: https://junglewise.ai/threats/cve-2026-18288-originlab-originpro-out-of-bounds-write-in-opju-file-parsing  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-08-20. Updated: 2026-09-25  
License: CC BY 4.0 with a link back

CVE-2026-18288 · Severity: high · CVSS 7.8 · Published 2026-08-20

OriginPro is a data analysis and graphing software used by scientists and engineers. A flaw in how it parses OPJU project files allows attackers to trigger an out-of-bounds write that corrupts memory. If a user opens a specially crafted malicious project file, an attacker can execute arbitrary code with the privileges of that user, potentially compromising their system and data.

Technologies: [OriginLab OriginPro](https://junglewise.ai/threats/technologies/originpro). Vendors: [OriginLab](https://junglewise.ai/threats/vendors/originlab).

## Quick answers

**Is CVE-2026-18288 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-18288 being exploited in the wild.

**How severe is CVE-2026-18288?** High severity, with a CVSS score of 7.8, published 20 August 2026.

**Which products and versions are affected?** OriginLab OriginPro 2026b SR0 and earlier.

**Is there a fix for CVE-2026-18288?** A patch was published on 2026-08-11: Coordinated public release; fix available in OriginPro 2026b SR1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-18288 attacked?** It is attacked with local access.

**Am I affected by CVE-2026-18288?** Check whether you run OriginLab OriginPro at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is an out-of-bounds write in the OPJU file parser, caused by insufficient validation of user-supplied data during file processing. The attack vector is local with user interaction required—a target must open a malicious OPJU project file. This results in heap corruption that can be leveraged to achieve remote code execution in the context of the current process. The vulnerability affects OriginPro 2026b SR0 and earlier; OriginLab released a fix in OriginPro 2026b SR1.

## Affected products

- OriginLab OriginPro 2026b SR0 and earlier

## Timeline

- 2026-03-11: disclosed: Vulnerability reported to vendor
- 2026-08-11: patched: Coordinated public release; fix available in OriginPro 2026b SR1

## References

- [https://docs.originlab.com/cve/CVE-2026-18288](https://docs.originlab.com/cve/CVE-2026-18288)
- [https://www.zerodayinitiative.com/advisories/ZDI-26-547/](https://www.zerodayinitiative.com/advisories/ZDI-26-547/)

## Related threats

- [OriginLab OriginPro memory corruption in OGG file parsing](https://junglewise.ai/threats/cve-2026-18292-originlab-originpro-memory-corruption-in-ogg-file-parsing)
- [OriginLab OriginPro memory corruption in OGW file parsing](https://junglewise.ai/threats/cve-2026-18291-originlab-originpro-memory-corruption-in-ogw-file-parsing)
- [OriginLab OriginPro out-of-bounds write in OGG file parsing](https://junglewise.ai/threats/cve-2026-18290-originlab-originpro-out-of-bounds-write-in-ogg-file-parsing)
- [OriginLab OriginPro out-of-bounds write in OPJ file parsing](https://junglewise.ai/threats/cve-2026-18289-originlab-originpro-out-of-bounds-write-in-opj-file-parsing)