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CVE-2019-17555

25
FAUCET Score

CVE-2019-17555 describes a Denial-of-Service (DoS) vulnerability in Apache Olingo versions 4.0.0 to 4.6.0, where the AsyncResponseWrapperImpl class processes the Retry-After header without validation. A malicious server can exploit this by sending an excessively large value in the Retry-After header, causing the client-side Thread.sleep() method to hang indefinitely. This vulnerability carries a CVSS score of 7.5 (High) due to its network-based attack vector, low complexity, and potential for high availability impact. There is no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 4.0.0, <= 4.6.0CPE matchmatch criteria
cpe:2.3:a:apache:olingo:*:*:*:*:*:*:*:*

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:N/I:N/A:H

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

Exploit Intelligence

EPSS Score
2.07%
Probability of exploitation in next 30 days
EPSS Percentile
79.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0207 is in the 64th 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: org.apache.olingo:odata-client-coreFixed in: 4.7.0

Vendor Advisories (1)

mavenGHSA-477x-w7m6-c6phhigh

Improper input validation in Apache Olingo

Feb 4, 2020

References

mail-archives.apache.org / mod_mbox/olingo-user/201912.mbox/%3CCAGSZ4d65UmudJ_MQkFXEv9YY_wwZbRA3sgtNDzMoLM51Qh%3DRCA%40mail.gmail.com%3E
Mailing ListVendor Advisory