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CVE-2019-17598

23
FAUCET Score

CVE-2019-17598 affects Lightbend Play Framework versions 2.5.x through 2.6.23, where play-ws, when configured with an authenticated HTTP proxy and connecting to an HTTPS target, may inadvertently expose proxy credentials to the target host, particularly under high load. This vulnerability carries a CVSS score of 7.5 (High), indicating a network-based attack with low complexity, potentially leading to high confidentiality impact without requiring user interaction. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.5.0, <= 2.5.19CPE matchmatch criteria
cpe:2.3:a:lightbend:play_framework:*:*:*:*:*:*:*:*
>= 2.6.0, <= 2.6.23CPE matchmatch criteria
cpe:2.3:a:lightbend:play_framework:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.70%
Probability of exploitation in next 30 days
EPSS Percentile
49.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0070 is in the 25th percentile among its peer group of 51,485 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: com.typesafe.play:play-ws_2.12Fixed in: 2.6.24

Vendor Advisories (1)

mavenGHSA-442g-gcg6-mhm4high

Play Framework Inadequate Encryption Strength vulnerability

May 24, 2022

References

playframework.com / security/vulnerability
Release NotesVendor Advisory
playframework.com / security/vulnerability/CVE-2019-17598-PlayWSHttpConnectAuthorizationHeaders
Vendor Advisory