01 Record

CVE-2026-75628

Punk::OAuth2 versions before 0.03 for Perl allow an attacker-chosen off-site redirect after login because same_origin_path accepts a backslash or tab in the return parameter

MediumPUBLISHEDCNA: CPANSec

CNA base score5.7 CVSS v3.xCVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N

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02 Description

Punk::OAuth2 versions before 0.03 for Perl allow an attacker-chosen off-site redirect after login because same_origin_path accepts a backslash or tab in the return parameter

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.50% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 42.7% of scored records. A rank, not a probability.

NVD base score

5.7 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-10-27.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-08-20 00:40Z2 MO AGO

Last updated

2026-10-19 21:19Z9 DAYS AGO

Reserved

2026-08-18

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

Medium (CVSS 5.7)

CNA CVSS vector

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

Weaknesses

CWE-601URL Redirection to Untrusted Site ('Open Redirect')Base

Data version

5.2

Document digest

5d619af32db01fa180c44ab4640a057df6273cc3ae62758822775a2e3c6d131d

05 Affected products

No products listed

This record names no affected vendor or product. That is common for reserved identifiers and for records whose CNA published only a narrative description.

06 References

metacpan.orghttps://metacpan.org/release/LNATION/Punk-OAuth2-0.03/changesrelease-notes
metacpan.orghttps://metacpan.org/release/LNATION/Punk-OAuth2-0.02/source/include/pox/pox_util.h#L94technical-description
datatracker.ietf.orghttps://datatracker.ietf.org/doc/html/rfc9700#section-4.11.1technical-description
url.spec.whatwg.orghttps://url.spec.whatwg.org/#relative-slash-statetechnical-description
url.spec.whatwg.orghttps://url.spec.whatwg.org/#concept-basic-url-parsertechnical-description
www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/08/20/1

07 Remediation

Upgrade to Punk-OAuth2 0.03 or later.