UpHeron
All vulnerabilities

Servers and applications

CVE-2012-1150

Python before 2.6.8, 2.7.x before 2.7.3, 3.x before 3.1.5, and 3.2.x before 3.2.3 computes hash values without restricting the ability to trigger hash collisions predictably, which allows context-dependent attackers to cause a denial of service (CPU consumption) via crafted input to an application that maintains a hash table.

Severity
Medium 5.0
Published
5 Oct 2012
Last changed
16 Jun 2026
Added to UpHeron
21 Oct 2026
Exploit chance
5.1% in the next 30 daysHigher than 92% of CVEs. EPSS by FIRST, 12 Nov 2026
Weakness
CWE-310
Attack
Over the network · No login needed
Attacker can
Slow it down
CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P
Sources
NVD

Affected software

SoftwareAffected versions
PythonServers and applications · cpe:a:python:python
  • Version 3.2.2150
  • Version 3.2
  • Version 3.2-alpha
  • Version 3.1.4
All 58 release lines
  • Every version up to 2.6.7
  • Version 0.9.0
  • Version 0.9.1
  • Version 1.2
  • Version 1.3
  • Version 1.5.2
  • Version 1.6
  • Version 1.6.1
  • Version 2.0
  • Version 2.0.1
  • Version 2.1
  • Version 2.1.1
  • Version 2.1.2
  • Version 2.1.3
  • Version 2.2
  • Version 2.2.1
  • Version 2.2.2
  • Version 2.2.3
  • Version 2.3.1
  • Version 2.3.2
  • Version 2.3.3
  • Version 2.3.4
  • Version 2.3.5
  • Version 2.3.7
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.4
  • Version 2.4.6
  • Version 2.5.1
  • Version 2.5.2
  • Version 2.5.3
  • Version 2.5.4
  • Version 2.5.6
  • Version 2.5.150
  • Version 2.6.1
  • Version 2.6.2
  • Version 2.6.3
  • Version 2.6.4
  • Version 2.6.5
  • Version 2.6.6
  • Version 2.6.2150
  • Version 2.6.6150
  • Version 2.7.1-rc1
  • Version 2.7.1
  • Version 2.7.2-rc1
  • Version 2.7.1150
  • Version 2.7.2150
  • Version 3.0
  • Version 3.0.1
  • Version 3.1
  • Version 3.1.1
  • Version 3.1.2
  • Version 3.1.3
  • Version 3.1.4
  • Version 3.2-alpha
  • Version 3.2
  • Version 3.2.2150

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2012-1150
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2012-1150