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Medium

Reachable Assertion in OpenCV.

  • Disclosed: 12.10.2021
  • Updated: 11.10.2026 15:17

In OpenCV 3.3.1 (corresponds with OpenCV-Python 3.3.1.11), an assertion failure happens in cv::RBaseStream::setPos in modules/imgcodecs/src/bitstrm.cpp because of an incorrect integer cast.

Affected software

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PlatformPackageVulnerable versionsFixed in
Python (PyPI) opencv-contrib-python < 3.4.1.15 3.4.1.15
Python (PyPI) opencv-python < 3.4.1.15 3.4.1.15

References

CVSS score 5.5/10
CVSS vector
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Weakness (CWE)
CWE-617
Platform
Python (PyPI)
Package
opencv-contrib-python, opencv-python
Disclosed
12.10.2021
Updated
11.10.2026 15:17

Sources and licenses

OSV / GitHub Advisory Database - PYSEC-2026-703 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - PYSEC-2026-2812 - PyPA Advisory Database; CC BY 4.0

OSV / GitHub Advisory Database - GHSA-89rj-5ggj-3p9p - CC BY 4.0

Vulnerability history: opencv-contrib-python

All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.

All (32) in the archive
Total entries
32
First → latest
10.2021 08.2024
Without a fix
2
Exploited in attacks
0

Severity breakdown

  • High 23
  • Medium 8
  • Unrated 1

Disclosures per year

Severity:
  1. opencv-contrib-python bundled libwebp binaries in wheels that are vulnerable to CVE-2023-4863
    High · 8.8 ghsa-cxjf-x6jp-p7mc < 4.8.1.78 4.8.1.78
  2. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2019-5064 < 4.2.0.32 4.2.0.32
  3. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2019-5063 <= 4.1.0.25 no fix
  4. Out-of-bounds Write in OpenCV
    High · 7.8 CVE-2019-9423 <= 4.1.1.26 no fix
  5. NULL Pointer Dereference in OpenCV.
    High · 7.5 CVE-2019-14493 < 4.1.1.26 4.1.1.26
  6. Out-of-bounds Read and Out-of-bounds Write in OpenCV
    High · 7.5 CVE-2019-14492 < 3.4.7.28, >= 4.0.0.21, < 4.1.1.26 3.4.7.28, 4.1.1.26
  7. Out-of-bounds Read in OpenCV
    High · 8.2 CVE-2019-14491 < 3.4.7.28, >= 4.0.0.21, < 4.1.1.26 3.4.7.28, 4.1.1.26
  8. Reachable Assertion in OpenCV. this entry
    Medium · 5.5 CVE-2018-5269 < 3.4.1.15 3.4.1.15
  9. Integer Overflow or Wraparound in OpenCV.
    High · 8.8 CVE-2017-1000450 < 3.3.1.11 3.3.1.11
  10. Out-of-bounds Read in OpenCV
    High · 7.5 CVE-2017-18009 < 3.4.1.15 3.4.1.15
  11. Integer Overflow or Wraparound in OpenCV
    High · 8.8 CVE-2017-12864 < 3.3.1.11 3.3.1.11
  12. Integer Overflow or Wraparound in OpenCV
    High · 8.8 CVE-2017-12863 < 3.3.1.11 3.3.1.11
  13. Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV
    High · 8.8 CVE-2017-12862 < 3.3.1.11 3.3.1.11
  14. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12606 < 3.3.1.11 3.3.1.11
  15. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12605 < 3.3.1.11 3.3.1.11
  16. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12604 < 3.3.1.11 3.3.1.11
  17. Out-of-bounds Write in OpenCV
    High · 8.8 CVE-2017-12603 < 3.3.1.11 3.3.1.11
  18. Denial of Service in OpenCV
    High · 7.5 CVE-2017-12602 < 3.3.1.11 3.3.1.11
  19. Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV
    High · 8.8 CVE-2017-12601 < 3.3.1.11 3.3.1.11
  20. Denial of Service in OpenCV
    High · 7.5 CVE-2017-12600 < 3.3.1.11 3.3.1.11
Show more (4) Showing 20 of 24

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