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CVE-2013-10031

Plack::Middleware::Session versions before 0.17 for Perl may be vulnerable to HMAC comparison timing attacks

HIGH
7.5
CVSS Score
Published: December 9, 2025 at 12:12 AM UTC
Updated: June 16, 2026 at 11:50 PM UTC
2 products affected across 2 vendorsPlack Middleware SessionPlack::Middleware::Session

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Plack-Middleware-Session versions before 0.17 may be vulnerable to HMAC comparison timing attacks

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Plack Middleware Session· Plack
95%
v < 0.17
Plack::Middleware::Session· Miyagawacpan
60%
0.01 ≤ v < 0.170.01
Affected range stops below 0.17, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

Patch
Source: cverecord
https://github.com/plack/Plack-Middleware-Session/commit/b7f0252269ba1bb812b5dc02303754fe94c808e4

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-1254

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