Log injection in CallBackery for Perl lets attackers forge log records
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
CallBackery for Perl versions before 0.62.0 are affected. The login() function writes the login name to the application log without escaping control characters, so a newline lets an attacker add a forged log record (CWE-117). An unauthenticated remote attacker can exploit this because the login RPC method needs no authentication, forging records such as a successful administrator login from an address of their choosing.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
Description from the CNA
CallBackery versions before 0.62.0 for Perl allow log injection via newlines in the login name. login() writes the login name to the application log without escaping control characters. The login RPC method needs no authentication, so a name containing a newline followed by text in the log record format adds a forged record. An unauthenticated attacker can forge log records, such as a successful administrator login from an address of their choosing.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | CallBackery | before 0.62.0 | 0.62.0 | Patch available | CNA |
- CallBackery Vendor— Affected before 0.62.0 Fixed in 0.62.0 Patch available CNA
Remediation
Upgrade CallBackery to version 0.62.0 or later, which is the fixed version.
Written with Claude Haiku 5.5 from the sources below · 2026-11-06
- Fix · CNA CallBackery Fixed in 0.62.0
Timeline
- 2026-10-30 Threatist record created from CVE-2026-118994
- 2026-10-30 Alias added: GHSA-gr3r-64v5-rf93
- 2026-11-06 CVSS score added · CISA ADP
- 2026-11-06 CISA SSVC decision points changed
- 2026-11-06 Priority changed: LOW → MEDIUM
References
Sources
- CVE-2026-118994 · CVE Program
- CVE-2026-118994 · NVD
- FIRST EPSS
- GHSA-gr3r-64v5-rf93 · GitHub Advisory Database · CC BY 4.0
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