🛡️ CVE-2019-15939 — opencv-contrib-python

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

• Attack vector: Network — reachable from anywhere that can route to the service.
• Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
• Privileges required: None — an unauthenticated stranger can try it.
• User interaction: None — nobody has to be tricked into anything.
• Scope: Unchanged — the damage stays inside the vulnerable component.
• Confidentiality impact: None.
• Integrity impact: None.
• Availability impact: High — total loss, or loss the attacker controls.

Weakness class

CVE-2019-15939 is classified as CWE-369: Divide By Zero. A divisor derived from input is not checked for zero, terminating or destabilising the process.

Affected software

CVE-2019-15939 is recorded against 4 packages.

• opencv-contrib-python (fixed in 4.1.1.26)
• opencv-contrib-python-headless (fixed in 4.1.1.26)
• opencv-python (fixed in 4.1.1.26)
• opencv-python-headless (fixed in 4.1.1.26)

Timeline and source

Published on 12 October 2021 and last revised on 13 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Package)
lists.debian.org (Web)
lists.opensuse.org (Web)

Other advisories for this package

opencv-contrib-python has other advisories on record. If you are patching this one, these are worth checking on the same host:

• CVE-2019-14492 (8.0 High, published 9 Jul 2026)
• CVE-2019-14491 (8.0 High, published 9 Jul 2026)
• CVE-2019-5064 (8.0 High, published 9 Jul 2026)
• CVE-2019-5063 (8.0 High, published 9 Jul 2026)
• CVE-2017-18009 (8.0 High, published 2 Jul 2026)
• CVE-2017-12599 (8.0 High, published 2 Jul 2026)
• CVE-2017-12598 (8.0 High, published 2 Jul 2026)
• CVE-2017-12603 (8.0 High, published 2 Jul 2026)

Same weakness in other software

These advisories are the same class of weakness (CWE-369: Divide By Zero) in other software:

• CVE-2026-19025 (published 5 Aug 2026)
• CVE-2026-67302 (4.3 Medium, published 1 Aug 2026)
• CVE-2026-62431 (7.5 High, published 28 Jul 2026)
• CVE-2026-64275 (5.5 Medium, published 25 Jul 2026)
• CVE-2026-64236 (5.5 Medium, published 24 Jul 2026)
• CVE-2026-7007 (4.6 Medium, published 24 Jul 2026)
• CVE-2026-10679 (3.3 Low, published 21 Jul 2026)
• CVE-2026-61378 (5.5 Medium, published 16 Jul 2026)

Details

Affected Packages

References