CVE-2021-27116

highpriority · track · 31EPSS 0.004 · 38 %ileEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.44% (38th) EPSS

CVSS 7.2 · high

Is it mine?

4 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

An issue was discovered in file profile.go in function MemProf in beego through 2.0.2, allows attackers to launch symlink attacks locally.

cvss

Technical severity, 0–10. One row per scoring source.

7.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USexploitability 3.9 · impact 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:Nsecondary · ENISA EU

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · cve@mitre.org USexploitability 1.8 · impact 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · OSV

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-59USprimaryCWE-59US

affected products (4)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
beego beego≤ 2.0.2nvdUScpe:2.3:a:beego:beego:*:*:*:*:*:*:*:*
Go github.com/beego/beegoall versionsosvUSpkg:golang/github.com/beego/beego
Go github.com/beego/beego/v22.0.0 → 2.0.2osvUSpkg:golang/github.com/beego/beego/v2

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-ffjp-66mx-3qpjPrivilege escalation in beego2022-04-06ghsa · osvUS
An issue was discovered in file profile.go. The MemProf and GetCPUProfile functions do not correctly check whether the created file exists. As a result attackers can launch attacks symlink attacks locally. Attackers can use this vulnerability to escalate privileges.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2022-04-05modified 2026-06-17

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+2367 more

references (5)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2021-27116/cnnvd
https://github.com/beego/beego/issues/4484 cnnvd
https://www.cybersecurity-help.cz/vdb/SB2022051320 cnnvd
https://github.com/beego/beego/issues/4484 enisa_euvd
https://github.com/beego/beego/issues/4484ExploitIssue TrackingThird Party Advisorynvd

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