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CVE-2026-55442medium5.3

Goobi viewer: cleanUpQuery double-brace bypass allows arbitrary Solr local-param injection

Impact

Goobi viewer versions 23.03 to 26.05 have a vulnerability where an attacker can bypass input validation by wrapping Solr local parameters in double curly braces, allowing arbitrary Solr local-param injection. The flaw affects any endpoint that uses the cleanUpQuery function. The issue is due to improper input validation and encoding.

Summarized by @cf/meta/llama-3.3-70b-instruct-fp8-fast. Verify details against the original sources.

Affected packages

This source has no supported package-version data for matching. You can read the advisory here, but this record alone cannot power a dependency check.

Affected products

Vendor version evidence. Product records are separate from automatic dependency matching.

intranda · GitHub_M

goobi-viewer-core

1 range

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affected

>= 23.03, < 26.05

unaffected

unknown

Other versions: unknown

Original source description

The Goobi viewer is a web application that allows digitised material to be displayed in a web browser. From version 23.03 to before version 26.05, SolrTools.cleanUpQuery() strips Solr local-parameter syntax ({!...}) from user-supplied query strings before they reach Solr. Its regex can be bypassed by wrapping the local parameter in a second pair of curly braces ({{!...}}): the outer braces are stripped, the inner {!...} survives intact, and a valid Solr local parameter is forwarded. The flaw is in the shared sanitizer, so it affects any endpoint that routes user input through cleanUpQuery. The double-brace bypass applies from v23.10 (the greedy {(.+)} regex); a related bare-!join rewrap path is present. This issue has been patched in version 26.05.

Inside the record

Evidence available

Package identity · not supplied
Version evidence
Remediation guidance · not supplied
Weakness classification
Additional publishers

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Original records

CVE-2026-55442

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Underlying weaknesses

The source’s classification of what caused the vulnerability.

CWE-20 ↗

CWE-20: Improper Input Validation

GitHub_M

Related →
CWE-116 ↗

CWE-116: Improper Encoding or Escaping of Output

GitHub_M

Related →
Contributing organizations · 2
GitHub_M

Assigning organization

2026-10-23
CISA-ADP

Additional data publisher

2026-10-29

What changed

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References

4 sources