HOMEVULNERABILITIESCVE-2019-17526
CRITICAL

CVE-2019-17526

CWE-78Published: October 18, 2019· Updated: Jun 17, 2026

9.8
CVSS v3.1

Official Description

An issue was discovered in SageMath Sage Cell Server through 2019-10-05. Python Code Injection can occur in the context of an internet facing web application. Malicious actors can execute arbitrary commands on the underlying operating system, as demonstrated by an __import__('os').popen('whoami').read() line. NOTE: the vendor's position is that the product is "vulnerable by design" and the current behavior will be retained

NVD Source

Technical Analysis

CVE-2019-17526 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sagemath1 product(s)
sagemathcell
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
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Official Patches & Advisories

PATCHhttps://github.com/sagemath/sagecell/commits/master
PATCHhttps://github.com/sagemath/sagecell/commits/master
ADVISORYhttps://gist.github.com/barrett092/0380a1c34c014e29b827d1f408381525
ADVISORYhttps://sethsec.blogspot.com/2016/11/exploiting-python-code-injection-in-web.html
ADVISORYhttps://gist.github.com/barrett092/0380a1c34c014e29b827d1f408381525
ADVISORYhttps://sethsec.blogspot.com/2016/11/exploiting-python-code-injection-in-web.html

All References (6)

→
https://gist.github.com/barrett092/0380a1c34c014e29b827d1f408381525Exploit · Third Party Advisory
→
https://github.com/sagemath/sagecell/commits/masterPatch
→
https://sethsec.blogspot.com/2016/11/exploiting-python-code-injection-in-web.htmlExploit · Third Party Advisory
→
https://gist.github.com/barrett092/0380a1c34c014e29b827d1f408381525Exploit · Third Party Advisory
→
https://github.com/sagemath/sagecell/commits/masterPatch
→
https://sethsec.blogspot.com/2016/11/exploiting-python-code-injection-in-web.htmlExploit · Third Party Advisory

Quick Facts

CVE IDCVE-2019-17526
CVSS Score9.8 / 10
SeverityCRITICAL
WeaknessCWE-78
CISA KEVNo
Affected1 vendor(s)
PublishedOct 18, 2019

Related CVEs (CWE-78)

CVE-2019-4202
10.0
CVE-2025-64127
10.0
CVE-2015-7253
10.0
CVE-2015-7426
10.0
CVE-2015-5672
10.0
CVE-2021-31891
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2019-17526 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWatch. CVE data is provided under the NVD usage policy.
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