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CVE-2021-21501

25
FAUCET Score

CVE-2021-21501 is a directory traversal vulnerability affecting Apache ServiceComb ServiceCenter versions 1.x.x, which was patched in version 2.0.0. This high-severity flaw, with a CVSS score of 7.5, allows unauthenticated attackers to access arbitrary files on the system with low attack complexity, potentially leading to significant information disclosure. Despite its severity, there is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.0.0, < 2.0.0CPE matchmatch criteria
cpe:2.3:a:apache:servicecomb:*:*:*:*:*:*:*:*

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
4.44%
Probability of exploitation in next 30 days
EPSS Percentile
90.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0444 is in the 83rd percentile among its peer group of 51,551 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)

gopatch availablevia ghsa
Product: github.com/apache/servicecomb-service-centerFixed in: 2.0.0

Vendor Advisories (1)

goGHSA-x6jv-5vfg-gm7xhigh

Path traversal in ServiceCenter

Sep 1, 2021

References

lists.apache.org / thread.html/r337be65e504eac52a12e89d7de40345e5d335deee9dd7288f7f59b81%40%3Cannounce.apache.org%3E
lists.apache.org / thread.html/r337be65e504eac52a12e89d7de40345e5d335deee9dd7288f7f59b81%40%3Cdev.servicecomb.apache.org%3E
Mailing ListVendor Advisory
openwall.com / lists/oss-security/2021/08/10/3
Mailing ListThird Party Advisory