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Fencer Intel
medium 6.5

CVE-2012-0878 json

Paste Script has improper group memberships permissions

published 2012-05-01 14 y ago modified 2026-07-13 3 mo ago also GHSA-27px-qpmj-qg38 , PYSEC-2012-15 , PYSEC-2026-2859 , EUVD-2012-0025

cvss
6.5
version 3.1, GitHub
cisa kev
Not listed
not in CISA's catalog
epss
4.0%
EPSS 4.0% chance of exploitation in 30 days, percentile 90%
public exploits
0
none known

Summary

Paste Script 1.7.5 and earlier does not properly set group memberships during execution with root privileges, which might allow remote attackers to bypass intended file-access restrictions by leveraging a web application that uses the local filesystem.

Patch / fix

  • pypi pastescript 2.0.1
  • pypi paste 1.7.5.1
  • pastescript Debian 14, Debian 13, Debian 12 1.7.5-2

debian advisories DEBIAN-CVE-2012-0878

  • python-paste-script RHEL 6 1.7.3-5.el6_3

red hat advisories RHSA-2012:1206

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2012-0878 updated cvss 5.1

python-paste-script: Supplementary groups not dropped when started an application with "paster serve" as root

  • Red Hat Enterprise Linux Server (v. 6) python-paste-script 1.7.3-5.el6_3 Red Hat Enterprise Linux Workstation (v. 6) python-paste-script 1.7.3-5.el6_3
    fixed: vendor fix RHSA-2012:1206

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

4.03% chance of exploitation in the next 30 days, higher than 90% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 2.0 5.1 AV:N/AC:H/Au:N/C:P/I:P/A:P
GitHub 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
OSV 3.1 6.5 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Affected packages

ecosystem package affected fixed in
pypi pastescript
<2.0.1
2.0.1
pypi paste
<1.7.5.1
1.7.5.1

Classification

Weakness
  • CWE-264 Permissions, Privileges, and Access Controls

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.