CVE-2026-8507
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedCrypt::OpenSSL::PKCS12 versions through 1.94 for Perl have out-of-bounds (OOB) write flaws. When parsing a PKCS12 file, with a >= 1 GiB OCTET STRING (or BIT STRING) attribute on a SAFEBAG, via info() or info_as_hash(), a heap out-of-bounds write would be triggered with remote-code-execution potential (RCE) due to a signed integer overflow in the size calculation passed to Renew().
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceHeap-based buffer overflow in Crypt::OpenSSL::PKCS12 Perl module when parsing PKCS12 files containing SAFEBAG attributes with OCTET STRING or BIT STRING values >= 1 GiB. A signed integer overflow in size calculation passed to the Renew() function causes heap memory corruption, leading to potential remote code execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Find installed version of Crypt::OpenSSL::PKCS12Run 'perl -MCrypt::OpenSSL::PKCS12 -e "print $Crypt::OpenSSL::PKCS12::VERSION"' or check via 'cpan -m Crypt::OpenSSL::PKCS12'Affected if Version is lower than 1.94 or version cannot be determined (module may be from an unpatched distribution)
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Identify scripts using vulnerable functionsSearch Perl codebase for calls to 'info()' or 'info_as_hash()' methods on Crypt::OpenSSL::PKCS12 objects, e.g., grep -r '->info(' or '->info_as_hash(' across Perl scriptsAffected if Codebase contains PKCS12 parsing via these functions and processes files from untrusted or external sources
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Determine PKCS12 file sourceReview the data flow: identify if the info() or info_as_hash() functions receive PKCS12 files from user upload, network import, external systems, or other untrusted originsAffected if Untrusted or externally-sourced PKCS12 files are processed through the vulnerable functions in versions below 1.94
You are affected if Crypt::OpenSSL::PKCS12 version is below 1.94 AND your Perl code uses the info() or info_as_hash() functions to parse PKCS12 files from untrusted or external sources.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataUpgrade Crypt::OpenSSL::PKCS12 to a version beyond 1.94 when available. Until then, avoid processing untrusted or externally-sourced PKCS12 files with the affected functions info() and info_as_hash().
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-8507 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-8507 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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