uclouvain openjpeg pi.c opj_pi_initialise_encode integer overflow
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Deferred Red Hat: fix deferred
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
A vulnerability was identified in uclouvain openjpeg up to 2.5.4. This impacts the function opj_pi_initialise_encode in the library src/lib/openjp2/pi.c. The manipulation leads to integer overflow. The attack must be carried out locally. The exploit is publicly available and might be used. The identifier of the patch is 839936aa33eb8899bbbd80fda02796bb65068951. It is suggested to install a patch to address this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| The OpenJPEG Project | openjpeg | 2.5.0; 2.5.1; 2.5.2; 2.5.3; 2.5.4 | — | No fix listed | CNA |
- openjpeg VendorThe OpenJPEG Project Affected 2.5.0; 2.5.1; 2.5.2; 2.5.3; 2.5.4 Fixed in — No fix listed CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* | — | — | The OpenJPEG Project |
- cpe:2.3:a:uclouvain:openjpeg:*:*:*:*:*:*:*:* Versions — — ·The OpenJPEG Project
Remediation
No fixed version listed by the sources yet.
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-6192
- 2026-10-03 Alias added: GHSA-6jfp-5ggc-pgmx
References
More The OpenJPEG Project vulnerabilities
- TI-2025-34608 OpenJPEG allows OOB heap memory write in opj_jp2_read_header CVSS 4.0MEDIUM 6.6
- TI-2025-32278 openjpeg v 2.5.0 was discovered to contain a NULL pointer dereference via the component /openjp2/dwt.c. CVSS 3.1MEDIUM 6.5
- TI-2012-02889 Multiple heap-based buffer overflows in the j2k_read_sot function in j2k.c in OpenJPEG… CVSS 2.0HIGH 10.0
- TI-2017-12771 In OpenJPEG 2.3.0, a stack-based buffer overflow was discovered in the pgxtovolume… CVSS 3.1CRITICAL 9.8
- TI-2017-12770 In OpenJPEG 2.3.0, a stack-based buffer overflow was discovered in the pgxtoimage… CVSS 3.0CRITICAL 9.8
- TI-2015-07301 Use-after-free vulnerability in the opj_j2k_write_mco function in j2k.c in OpenJPEG… CVSS 3.0CRITICAL 9.8
Sources
- CVE-2026-6192 · CVE Program
- CVE-2026-6192 · NVD
- FIRST EPSS
- GHSA-6jfp-5ggc-pgmx · GitHub Advisory Database · CC BY 4.0
- CVE-2026-6192 · Red Hat security data · CC BY 4.0
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