CVE-2025-15282

Aliases:DEBIAN-CVE-2025-15282CGA-456q-ww7g-34m5CGA-546f-mm85-qc56CGA-54mp-4r3j-27jmCGA-72jf-r4g8-9746CGA-9w5q-4cf9-xw75CGA-c885-m3j5-8x5qCGA-ggx6-mg23-9fcxCGA-gwc4-87m7-5h5jCGA-m2qx-wv5q-wpr4CGA-6gw9-pvf3-vwggCGA-v6h5-378r-qjj4CGA-vf4c-qmp6-9c5j
Advisory lineage Upstream: 0 Downstream: 35
Deferred
Published: 20 Jan 2026, 21:35
Last modified:03 Mar 2026, 14:42

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
6 MEDIUM
v4.0 (cve.org)
EPSS Score
0.55% LOW
1% probability +0.50%
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

20 Jan 2026, 21:35
Published
Vulnerability first disclosed
03 Mar 2026, 14:42
Last Modified
Vulnerability information updated

Description

User-controlled data URLs parsed by urllib.request.DataHandler allow injecting headers through newlines in the data URL mediatype.

CVSS Metrics

  • v4.0•MEDIUM•Score: 6CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N
  • v4.0•MEDIUM•Score: 6CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Trends

Current EPSS score: 0.55%• Percentile: 45%

Techniques & Countermeasures

  • CWE-93•Improper Neutralization of CRLF Sequences ('CRLF Injection')

    The product uses CRLF (carriage return line feeds) as a special element, e.g. to separate lines or records, but it does not neutralize or incorrectly neutralizes CRLF sequences from inputs.

Affected Systems

  • chainguard•python-3.10

    < 3.10.19-r4

  • chainguard•python-3.11

    < 3.11.14-r5

  • chainguard•python-3.12

    < 3.12.12-r5

  • chainguard•python-3.13

    < 3.13.12-r1

  • chainguard•python-3.14

    < 3.14.3-r1

  • chainguard•python-3.9

    all

  • wolfi•python-3.10

    < 3.10.19-r4

  • wolfi•python-3.11

    < 3.11.14-r5

  • wolfi•python-3.12

    < 3.12.12-r5

  • wolfi•python-3.13

    < 3.13.12-r1

  • wolfi•python-3.14

    < 3.14.3-r1

  • debian•pypy3

    all | all | all | < 7.3.21+dfsg-1

  • debian•python3.11

    < 3.11.2-6+deb12u7

  • debian•python3.13

    < 3.13.5-2+deb13u1 | < 3.13.12-1

  • debian•python3.14

    < 3.14.3-1

  • debian•python3.9

    < 3.9.2-1+deb11u5

  • python software foundation•cpython

    < 3.15.0 | ≥ 3.15.0a1, < 3.15.0 | < 3.13.12 | < 3.10.20 | ≥ 3.11.0, < 3.11.15 | ≥ 3.12.0, < 3.12.13 | ≥ 3.13.0, < 3.13.12 | ≥ 3.14.0, < 3.14.3 | ≥ 3.15.0a1, < 3.15.0a6

References (13)