No exploitation reportedFix available

CVE-2019-11831

Q: Is CVE-2019-11831 actively exploited?

Active exploitation of CVE-2019-11831 has not been confirmed. Its EPSS score was 5.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2019-11831?

CVE-2019-11831 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2019-05-09
Fixed in8.7.1 · 8.6.16 · 7.67 · 7.67.0
WeaknessCWE-22 · CWE-502

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

The PharStreamWrapper (aka phar-stream-wrapper) package 2.x before 2.1.1 and 3.x before 3.1.1 for TYPO3 does not prevent directory traversal, which allows attackers to bypass a deserialization protection mechanism, as demonstrated by a phar:///path/bad.phar/../good.phar URL.

Timeline

dates in UTC

2019-05-0904:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2019-11831?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2019-11831?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · OSV

Drupal

Branch	Affected	Fixed in	Source
8.7	≥ 8.7.0, < 8.7.1	8.7.1	NVD · OSV
8.6	≥ 8.6.0, < 8.6.16	8.6.16	NVD
8.x	≥ 8.0.0, < 8.6.16	8.6.16	OSV
7.x	≥ 7.0, < 7.67	7.67	NVD
7.x	≥ 7.0.0, < 7.67.0	7.67.0	OSV

Fedoraproject fedora

Branch	Affected	Fixed in	Source
28.x	= 28	no fix published	NVD
29.x	= 29	no fix published	NVD
30.x	= 30	no fix published	NVD

Debian debian linux

Branch	Affected	Fixed in	Source
8.0	= 8.0	no fix published	NVD
9.0	= 9.0	no fix published	NVD

2 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Drupal to 8.7.1 · 8.6.16 · 7.67 · 7.67.0

Advisories and patches

github.comRelease Notes
github.comRelease Notes
typo3.orgVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.19.8read 2026-10-23
NVDCVSS 2.07.5read 2026-10-23
NVDweakness (CWE)CWE-22, CWE-502read 2026-10-23
FIRST EPSSEPSS score5.4 %2026-10-23
OSVaffected packages—

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2019-05-09
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2019-11831?

Is CVE-2019-11831 actively exploited?

Active exploitation of CVE-2019-11831 has not been confirmed. Its EPSS score was 5.4% on 2026-10-23, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2019-11831?

CVE-2019-11831 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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