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CVE Record

CVE-2019-19899: Pebble Templates 3.1.2 allows attackers to bypass a protection mechanism (intended to block access to insta...

Pebble Templates 3.1.2 allows attackers to bypass a protection mechanism (intended to block access to instances of java.lang.Class) because getClass is accessible via the public static java.lang.Class java.lang.Class.forName(java.lang.Module,java.lang.String) signature.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2019-19899 describes a protection bypass in Pebble Templates 3.1.2. A guard intended to prevent template access to java.lang.Class could be bypassed through an accessible Java Class.forName signature. The public record does not provide CVSS, fixed-version, or broad affected-product detail.

Executive priority

Treat this as an inventory and dependency-governance item unless your applications allow user-controlled template rendering. Escalate priority if Pebble 3.1.2 is present in externally reachable services or tenant-customizable template workflows.

Technical view

The issue is in Pebble Templates 3.1.2 protection logic around blocking java.lang.Class access. The CVE description attributes bypassability to getClass being reachable via public static java.lang.Class java.lang.Class.forName(java.lang.Module, java.lang.String). Available sources do not document exploit chains, impact primitives, or remediation specifics.

Likely exposure

Likely exposure is Java applications using Pebble Templates 3.1.2, especially where templates or template expressions are influenced by untrusted users. The source bundle does not establish exposure for later versions or downstream products.

Exploitation context

The CVE is not listed as KEV in the provided data, and the bundle cites no active exploitation. Public evidence only supports a protection-bypass condition, not confirmed real-world exploitation or a complete attack path.

Researcher notes

Evidence is sparse: no CVSS, CWE, CPE, patch version, or exploitation confirmation is present in the supplied bundle. Analysis should stay tied to Pebble 3.1.2 and the stated Class access bypass until vendor records provide more detail.

Mitigation direction

  • Inventory applications using Pebble Templates and identify version 3.1.2 deployments.
  • Check Pebble Templates vendor guidance and release history for fixed versions or recommended mitigations.
  • Avoid rendering untrusted templates until the affected behavior is ruled out or mitigated.
  • Restrict template authoring privileges to trusted users where business workflows allow.
  • Document any temporary compensating controls and owners.

Validation and detection

  • Confirm dependency manifests and runtime artifacts for Pebble Templates 3.1.2.
  • Identify whether any application accepts user-controlled template content or expressions.
  • Review the referenced GitHub issue for vendor-maintained technical context.
  • Validate remediation in a controlled environment without using production data.
  • Re-run application tests covering template rendering and authorization boundaries.
Prepared
Confidence
medium
Sources
3

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

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CVE-2019-19899 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors
0Timeline events
0ADP providers
2Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.