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CVE-2021-23495

Open Redirect

5.4 MediumFix available

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Required

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.88%Unchanged since Feb 26, 2022
90%50%10%1%

What each source reports

CVE List Score used 5.4

Open Redirect

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
CVE-2021-23495
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated
2026-11-02
EUVDEUVD-2022-1168 5.4

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
EUVD-2022-1168
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated
2026-11-03
GitHub AdvisoriesGHSA-rc3x-jf5g-xvc5 5.4

Open redirect in karma

Karma before 6.3.16 is vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
GHSA-rc3x-jf5g-xvc5
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-601
Updated
2026-11-02
NVD 5.4

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
CVE-2021-23495
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
CVSS 2.0
5.8 MediumAV:N/AC:M/Au:N/C:P/I:P/A:N
Weakness
CWE-601
Updated
2026-11-02
OSV 6.1

The package karma before 6.3.16 are vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
CVE-2021-23495
CVSS 3.1
6.1 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Updated
2026-11-02
OSVGHSA-rc3x-jf5g-xvc5 5.4

Open redirect in karma

Karma before 6.3.16 is vulnerable to Open Redirect due to missing validation of the return_url query parameter.

Record
GHSA-rc3x-jf5g-xvc5
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-601
Updated
2026-11-02
Show 10 moreShow less
OSVCLSA-2026-1773015273 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 4.4.1-tuxcare.1.

Record
CLSA-2026-1773015273
Updated
2026-11-02
OSVCLSA-2026-1774657354 No score

TuxCare security update for karma (1 CVE)

TuxCare rebuilt karma to address 1 CVE. Fixed in 4.1.0-tuxcare.1.

Record
CLSA-2026-1774657354
Updated
2026-11-02
OSVCLSA-2026-1774657360 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 5.0.9-tuxcare.1.

Record
CLSA-2026-1774657360
Updated
2026-11-02
OSVCLSA-2026-1776299661 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 4.0.1-tuxcare.1.

Record
CLSA-2026-1776299661
Updated
2026-11-02
OSVCLSA-2026-1779065202 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 3.0.0-tuxcare.1.

Record
CLSA-2026-1779065202
Updated
2026-11-02
OSVCLSA-2026-1784077511 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 5.0.0-tuxcare.1.

Record
CLSA-2026-1784077511
Updated
2026-11-02
OSVCLSA-2026-1785204336 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 1.7.0-tuxcare.1.

Record
CLSA-2026-1785204336
Updated
2026-11-02
OSVCLSA-2026-1785204345 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 4.0.0-tuxcare.1.

Record
CLSA-2026-1785204345
Updated
2026-11-02
OSVCLSA-2026-1785204347 No score

TuxCare security update for karma (2 CVEs)

TuxCare rebuilt karma to address 2 CVEs. Fixed in 1.5.0-tuxcare.1.

Record
CLSA-2026-1785204347
Updated
2026-11-02
OSVCLSA-2026-1791028060 No score

TuxCare security update for karma (1 CVE)

TuxCare rebuilt karma to address 1 CVE. Fixed in 5.2.3-tuxcare.1.

Record
CLSA-2026-1791028060
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
karma
npm
 before 6.3.16
6.3.16
karma
TuxCare:npm
From an advisory covering 2 CVEs
 4.4.1-tuxcare.0 up to 4.4.1-tuxcare.1, plus listed versions
4.4.1
4.4.1-tuxcare.1
karma
TuxCare:npm
 4.1.0-tuxcare.0 up to 4.1.0-tuxcare.1, plus listed versions
4.1.0
4.1.0-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 5.0.9-tuxcare.0 up to 5.0.9-tuxcare.1, plus listed versions
5.0.9
5.0.9-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 4.0.1-tuxcare.0 up to 4.0.1-tuxcare.1, plus listed versions
4.0.1
4.0.1-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 3.0.0-tuxcare.0 up to 3.0.0-tuxcare.1, plus listed versions
3.0.0
3.0.0-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 5.0.0-tuxcare.0 up to 5.0.0-tuxcare.1, plus listed versions
5.0.0
5.0.0-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 1.7.0-tuxcare.0 up to 1.7.0-tuxcare.1, plus listed versions
1.7.0
1.7.0-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 4.0.0-tuxcare.0 up to 4.0.0-tuxcare.1, plus listed versions
4.0.0
4.0.0-tuxcare.1
karma
TuxCare:npm
From an advisory covering 2 CVEs
 1.5.0-tuxcare.0 up to 1.5.0-tuxcare.1, plus listed versions
1.5.0
1.5.0-tuxcare.1
karma
TuxCare:npm
 5.2.3-tuxcare.0 up to 5.2.3-tuxcare.1, plus listed versions
5.2.3
5.2.3-tuxcare.1

History

History
RecordedChangedSources
affected, facts
aliases, publishedEUVD
first indexedCVE List, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2021-23495 is a medium vulnerability (CVSS 5.4) in Karma Project Karma, published February 25, 2022. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.88%, the 59th percentile. Fixed in karma 6.3.16.

References

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